Abstract:
Yoga apparel for assisting the wearer in performing and holding certain poses during the performance of Yoga exercise. The apparel has grips or strips of a friction-enhancing material, such as a rubber or textured surface material. The grips or strips are selectively provided in positions where a retention of body contact with a limb is desired. The grips or strips preferably have enhanced friction against both skin and normal apparel fabric, in both a dry and moistened state.

Description:
FIELD OF THE INVENTION 
     The invention relates to functional yoga apparel. 
     BACKGROUND OF THE INVENTION 
     It is commonly known to use clothing such as gloves to aid humans in gripping objects, such as sports gloves worn by athletes for more secure grips on catching and throwing footballs, holding bats, holding golf clubs. Also certain rubber grips are helpful in improving grip and friction in wet conditions. These grip garment gloves are used by a wide variety of professions and disciplines to provide grip to the hand grasp of objects and to also sometimes protect from cold elements and even furthermore can protect from injury if the garment or cloth is thick enough or padded. 
     In some cases, reinforced cycling clothing may have patches of material with a different coefficient of friction than the remainder of the garment, for example on the seating portion. 
     In Yoga, a practitioner assumes various poses, which often result in contact between a limb and another body part. Holding a pose may require balance and strength. Further, the poses may require strength, and result in perspiration. Likewise, clothing worn during yoga may be slick and non-abrasive. Therefore, a problem arises that the frictional coefficient between the limb and another body region that is sought for contact is insufficient to maintain a pose without exerting forces, and indeed, the positions may be such that no normal muscle group is available to exert such forces. Therefore, the pose may fail or be unduly difficult, for reasons distinct from the “purpose” of the pose. 
     Cloth used for Yoga exercise typically has a lower coefficient of friction than that of typical skin, and thus sliding is likely. Traction enhanced gloves, socks or footwear are known for use in Yoga exercises. These gloves and socks have even been incorporated in the Yoga community in the style of a grip glove or socks with rubber bumps on its palms or sole molded into the cloth. These Yoga marketed grip gloves and socks help with grip on the hands and feet, but don&#39;t generally cover the normal Yoga contact points, for example, on the legs and outside (posterior) of the arms. 
     A Yoga participant will generally want to get the best work out and achieve and maintain as good of form as possible while performing “Yoga moves” throughout the workout. Certain moves are more difficult than others and encounter situations where the performers of the moves finds themselves slipping off the fabric/garment of the clothing they are wearing, or off their own sweaty skin produced during excursion. Some of these moves are for stretching and balance and the effectiveness of the exercise is compromised or not achieved due to this slipping, and therefore the practitioner suffers excess slipping seeking to maintain the “Yoga move” and eliminating portions of the benefit of the move he or she is trying to perform. 
     See, e.g., U.S. Pat. Nos. 2,302,368; 2,831,196; 2,948,899; 2,986,740; 3,338,776; 3,526,229; 3,823,712; 4,273,216; 4,698,847; 4,730,625; 4,731,882; 4,862,523; 4,910,802; 4,911,439; 4,945,571; 4,946,453; 4,953,856; 4,993,705; 5,007,412; 5,014,358; 5,046,194; 5,088,728; 5,149,099; 5,179,942; 5,201,074; 5,282,277; 5,306,222; 5,337,418; 5,351,340; 5,367,708; 5,402,742; 5,410,755; 5,445,601; 5,451,060; 5,518,481; 5,536,246; 5,537,690; 5,542,123; 5,570,472; 5,582,583; 5,591,122; 5,611,084; 5,638,548; 5,699,559; 5,792,034; 5,799,328; 5,823,851; 5,829,058; 5,842,959; 5,857,947; 5,867,827; 5,896,578; 5,937,442; 5,960,474; 5,978,965; 5,978,966; 5,996,120; 6,006,363; 6,061,832; 6,068,606; 6,080,038; 6,086,551; 6,146,240; 6,176,816; 6,195,801; 6,231,488; 6,240,564; 6,260,201; 6,279,164; 6,287,242; 6,314,580; 6,364,851; 6,375,581; 6,430,753; 6,454,628; 6,546,560; 6,620,026; 6,684,410; 6,698,026; 6,719,712; 6,805,681; 6,892,396; 7,074,204; 7,087,032; 7,089,597; 7,117,538; 7,191,470; 7,241,252; 7,246,381; 7,374,523; 7,395,557; 7,559,093; 7,568,966; 7,631,367; 7,730,553; 7,908,670; 7,934,267; 7,996,924; 8,123,663; 8,156,572; 8,225,423; D539512; 20020078485; 20030028952; 20030233062; 20040000002; 20040016041; 20040107479; 20040111782; 20040133959; 20040255358; 20050038367; 20050086721; 20050193461; 20050197607; 20060026732; 20060026733; 20060026740; 20060070164; 20060070165; 20060101553; 20060129076; 20060169004; 20070050879; 20070271668; 20070271671; 20070294801; 20080022431; 20080066211; 20080076645; 20080120757; 20080134409; 20080141430; 20080141431; 20080178365; 20080189824; 20080295216; 20080319365; 20090025115; 20090062704; 20090133181; 20090171259; 20090172858; 20090265828; 20100050313; 20100077527; each of which is expressly incorporated herein by reference in its entirety. 
     SUMMARY OF THE INVENTION 
     The present invention therefore provides a garment or apparel which is specially designed to provide regions of high static friction located where body contact is desired. Preferably, regions outside of the preferred contact region are devoid of the frictional material, for example to facilitate entering into the pose and to avoid interference with other activities. 
     Because the regions of contact are also regions of wear, preferably, the frictional material has a high durability, and may be, for example, more durable than the remaining material. Similarly to frictional characteristics, the durability typically comes at a cost of decreased flexibility and breathability, and therefore may be restricted to wear regions of the garment. Likewise, the added grip portions may add to cost, and therefore limiting the amount of grip material may help ensure acceptable garment cost. Outside of the grip regions, the garment is preferably elastic and skin-hugging. 
     The grip regions may be formed of a material having a high coefficient of friction with respect to (a) dry skin and hair; (b) moist skin; (c) normal portions of the garment; (d) other grip regions on the garment; and (e) a floor or mat. On the other hand, the non-grip regions of the same garment preferably glide against wet and dry skin, and hair, and other non-grip portions of the garment. In addition, the grip portions may be textured, such as with a pattern of bumps or protrusions, or a geometric pattern, to engage opposing surfaces and to provide edges for “bite”. The texture is preferably such that the grip portions do not catch on or abrade non-grip portions. In a preferred embodiment, a combination of texturing and material is employed to generate the required characteristics. 
     Preferred materials for the grip portions are neoprene rubber, polyurethane, PVC coated woven polyester, polyester substrate or silicone rubber, though latex and other elastomers may be employed. 
     The grip portions may be formed on the garment by sewing patches onto the garment, applying patches with an adhesive, molding an elastomer (e.g., thermoset) onto the surface of the garment, melting a thermoplastic resin (e.g., ultrasonic bonding) patch onto the garment, or the like. 
     In some cases, the grip portions are provided intrinsically to the garment, for example as a result of selectively weaving a tacky elastomer fiber at appropriate locations on the garment, while using less sticky (e.g., Spandex®) fibers for a remainder of the garment. Spandex®, also known as elastane, is a fabric formed of polyester-polyurethane copolymer. 
     When non slip grip material, such as a natural or synthetic rubber, is attached to Spandex and other stretchy material, it is preferably attached to the material as separated sections spaced apart, to compensate for the yield the material will give when the wearer puts the clothing piece on (e.g. when a wearer wears spandex biker shorts, the spandex shorts stretch to conform around the wearers body) or stretches during exercise use. Therefore, especially in body regions subject to such stretch, the grip is interrupted. On the other hand, over body regions where stretch of the material during dressing and exercise is not high, in some cases it is preferred to have expanses of grip material, which may also provide padding. 
     According to one embodiment, the patches of grip material are sewn to an elastic fabric. All attached pieces of non slip grip strips are preferably stitched in such a manner that the stitch straddles all the edge of the non slip rubber grip strip/section, to prevent any catching or pulling on the edge, and to reduce accelerated wear and fatigue of the material and stitch point or seam. If the grip material is attached by heat bonding or adhesive, the grip material is preferably bonded to the underlying material all the way to the edges, for example by overlapping an adhesive on all edges in excess, and smoothed so as to leave no catching/pulling edges. 
     Therefore it is useful to have clothing or garments that would aid and assist Yoga participants in performing Yoga poses, stretches, moves and holds (balance, static and dynamic). The clothing would achieve this by providing friction and resistance to the relative motion/sliding of the body part at the various contact points on the body of the Yoga performer, yet provide smooth surfaces away from these contact points and a flexible, stretchable, and breathable fabric for the bulk of the garment. 
     The garment may be, for example, pants, Capri pants, shorts, a long sleeve shirt, a short sleeve shirt, arm sleeves (thermo), arm bands (sweat bands), and knee/elbow braces. 
     In one embodiment, the article has a non-slip rubber heel grip with a nylon stretching strap with loops, wherein the non-slip rubber Heel/foot loop with narrow nylon straps for stretching attach to the inside (between skin and fabric) medial and lateral surfaces of the pant seams of the article. Further, the nylon straps may have loops along the length that protrude through the article (pant legs) to be exposed on the outside of the article. 
     According to one embodiment, stretching straps are integrated, which provide a wearer with grasp or retention points by way of, for example, thin nylon straps sewn into reinforced portions of the medial and lateral lining of the pants, with the nylon loops protruding through the pants at locations along the medial and lateral seam/lining between the ankle and knee. The reinforcement is preferably circumferential around the limb. This nylon strap reinforcement may be continuous and connected to a heel loop or stirrup at the bottom of the pants leg, in the ankle hem/seam. This heel loop may be a frictional material to provide slip resistance to the wearer, and also act as an anchor when pulling on the nylon straps for deep leg stretches. 
     A similar structure may be provided by providing ankle or shin stretching straps, which are integrated into a lining of the pants. Medial and lateral loop straps may be affixed to a band structure tightened around the leg with, for example, a Velcro closure on a neoprene strap. The strap may be padded, for example with a nylon-neoprene/closed cell foam ankle and shin support. The support and securing straps may connect to the medial and lateral nylon loop straps at a 90 angle, to surround the ankle and upper calf while distributing the forces. The medial and lateral loop straps preferably continue to connect to a rubber heel loop for anchoring. 
     Another embodiment provides yoga footwear having a footwear upper and sole, which are integral with an ankle and calf surround. Similar to the aforementioned ankle structure, a set of bands are provided surrounding the lower calf, with pull loops extending from the medial and/or lateral sides, supported at the bottom by a band which loops under the arch, and at the top by a tightened strap. In this case, a footwear structure is integrated, and therefore a further grasping element may be provided at the toe, which has an inelastic connection to the ankle retention structures. The footwear aspect may resemble a sock, which has rubberized or grip applied portions on the bottom. 
     In another embodiment, the non-slip frictional grips areas/patterns can be in the most basic form of simply geometric shape strip sections, or can be arbitrarily shaped stamped patterns, such as characters, Chinese lettering/characters, pictures, logos, etc. 
     Moves, Poses and Stretches that may be facilitated according to the present technology include, but are not limited to: 
     Poses 
     1. Reverse warrior Pose (hamstring and calf grips) 
     2. Triangle Pose (lateral thigh grip, lateral arm grip) 
     3. Twisting chair Pose (lateral thigh grip, lateral arm grip) 
     4. Prayer Twist Pose (lateral thigh grip, lateral arm grip) 
     5. Right Angle Pose (lateral thigh grip, lateral arm grip) 
     6. Extended Right Angle Pose (lateral thigh grip, lateral arm grip) 
     7. Right Angle Pose &amp; Grab Pose (lateral thigh grip, lateral arm grip) 
     8. Prayer Twist from Runner&#39;s Pose (lateral thigh grip, lateral arm grip) 
     9. Sidearm Balance (for ankles grips and inner thigh/knee grips) 
     10. Meditation Pose (Inner thigh grip, lateral arm grip) 
     Balances Poses 
     1. Tree Pose (Inner thigh/knee grip) 
     2. Royal Dancer (ankle grip, ankle nylon stretch loop) 
     3. Crane Pose (Inner thigh/knee grip, lateral arm grip) 
     Stretches 
     1. Flat Back Stretch (shin grip) 
     2. Seated Spinal Stretch (lateral thigh grip, lateral arm grip) 
     3. Frog Stretch (Inner thigh/knee grip, lateral arm grip) 
     4. Plough into Shoulder Stand Pose (Shirt with grip on lower and mid back) 
     5. Shoulder Stand Pose (Shirt with grip on lower and mid back) 
     6. Cobbler Pose/Stretch (Inner thigh/knee grip, lateral arm grip) 
     7. Side Twist Stretch 
     8. Hamstring Stretch (Nylon Loops) 
     9. Glute Stretch 
     10. Happy Baby Stretch 
     The above and below advantages and features are of representative embodiments only, and are not exhaustive and/or exclusive. They are presented only to assist in understanding the invention. It should be understood that they are not representative of all the inventions defined by the claims, to be considered limitations on the invention as defined by the claims, or limitations on equivalents to the claims. For instance, some of these advantages may be mutually contradictory, in that they cannot be simultaneously present in a single embodiment. Similarly, some advantages are applicable to one aspect of the invention, and inapplicable to others. Furthermore, certain aspects of the claimed invention have not been discussed herein. However, no inference should be drawn regarding those discussed herein relative to those not discussed herein other than for purposes of space and reducing repetition. Thus, this summary of features and advantages should not be considered dispositive in determining equivalence. Additional features and advantages of the invention will become apparent in the following description, from the drawings, and from the claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The features and advantages of a clothing article according to the present invention will be more clearly understood from the following description taken in conjunction with the accompanying drawings in which like reference letters designate similar or corresponding elements, regions and portions and in which: 
         FIGS. 1, 2 and 3  show, respectively, a front, inner thigh and rear view of yoga pants and grip locations according to the present invention; 
         FIGS. 4 and 5  show, respectively, a front and rear view of shorts according to the present invention, with grip locations; 
         FIGS. 6 and 7  show, respectively, a front and rear view of a long sleeve shirt with grips, towel locations, and padded grip locations; 
         FIG. 8  shows a rear view of a three-quarter length sleeve shirt similar to  FIG. 7 , with grips, towel, and padded grip locations; 
         FIG. 9  shows a rear view of a short sleeve shirt similar to  FIG. 7 , with grip, towel and padded grip locations; 
         FIGS. 10 and 11  show, respectively, a front and rear view of Capri&#39;s according to the present invention with grip locations; 
         FIG. 12  shows a knee-ankle support stretching strap with heel grip and stretching loops; 
         FIG. 13  shows a front view of the short sleeve shirt according to  FIG. 9  with towel locations; 
         FIG. 14  shows a pair of thermal arm sleeves with grip and towel locations; 
         FIGS. 15, 16 and 17  show, respectively, a front, inner thigh, and rear view of thermal leg sleeves with grip locations; 
         FIGS. 18 and 19  show, respectively, a side perspective view and bottom (sole) view of embodiments of a grip sock/yoga footwear with integrated ankle support and stretching loop. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The Yoga apparel according to various aspects and embodiments of the invention allows a wearer to more easily hold poses, stretches and balance moves. A suite or ensemble of clothing also allows the wearer to push for deeper stretches or hold themselves (the wearer) back from over stretching. This suite has strategically placed non slip grip strips, to provide grip during certain and particular moves, poses and stretches. The suite uses, for example, rubber non-slip grip strips which may be sewn or adhered onto the clothes. The suite of clothing may include, for example, pants or shorts and shirts of various possible sleeve lengths. Thermal arm and/or leg sleeves may also be used instead of full clothing. 
     A pants embodiment provides non-slip grips strategically placed in various locations. These locations typically include the inner (medial) thigh/knee, outer thigh/knee (lateral), back (posterior) of the leg over the lower hamstring region. Below the knee the pants has strategically placed non slip rubber grip on the inner (medial) and outer (lateral) ankle and also non slip rubber grip placed on the back (posterior) of the ankle from the Achilles tendon to the calf region. Also non slip rubber grip placed over the shin (anterior) mid way between ankle and knee cap/patella. 
       FIGS. 1-3  show yoga pants having selectively provided grip locations on the outer thigh  7 , inner thigh  21 , hamstring area  2 , rear of knee  3 , calf  22 , medial aspect of knee  1 , and shin  6 , and further showing a strap system  5  with exterior loops protruding below the knee and above the ankle. An anchor  4  is provided surrounding the foot, which resists pulling on the strap system  5 , and has a grip surface to provide traction. 
     A user wears the pants during exercise and stretching, for example during yoga exercises. The grip locations on the inner thigh  21  and medial aspect of the knee  1  assist the user in maintaining position for example in a tree pose, where the sole of the foot, including anchor  4 , is in direct contact with the grips of the opposite thigh  21  and knee  1 . The grips are provided with sufficient friction with respect to the anchor  4  and bare skin to permit the user to readily maintain the pose without slipping. Likewise, other grip locations assist the user in maintaining different poses which may be difficult. 
     A shorts embodiment is similar to the pants embodiment, but avoids structures below the knee. The shorts thus typically have non slip grips, which are a natural or synthetic rubber or other elastomer, strategically placed in locations. These locations are the inner (medial) thigh/knee, outer thigh/knee (lateral). 
       FIGS. 4-5  show the shorts having grip strips on the medial thigh region  21  and medial knee  1 , as well as larger patches of grip material  7  over the anterior and lateral thigh. Similarly to the pants, strategically placed grip patches are provided on the rear of the thigh over the hamstring area  2 . The grip patches may be unitary or separated, for example the hamstring patches  2  as shown in  FIG. 5 , which provide an enhanced ability of the garment to readily stretch in spite of the significant reinforcement from the patches. The grip strips on the medial thigh  21  and inner knee  1  also permit the underlying material to stretch, and further provide a set of edges which can further enhance the non-slip performance of the garment, for example, with respect to sweat-moistened skin. 
     In some body regions, for example the inner thigh  21  and medial knee  1 , the skin can be sensitive, and therefore the overlying strips or patches may include a padding material or component. For example, the patches or strips may be formed of a foam rubber (open or closed cell) or gel material which distributes load and buffers shock. An air or fluid filled chamber may also be provided. 
       FIGS. 10-11  show a front view of a set of Capri&#39;s. Similar to the yoga pants of  FIGS. 1-3 , the capris have selectively provided grip locations on the outer thigh  7 , inner thigh  21 , hamstring area  2 , rear of knee  3 , calf  22 , medial aspect of knee  1 , and shin  6 . The strap system  5  and anchor  4  shown in  FIGS. 1-3  is not provided in this case. 
       FIGS. 6 and 7  show a long sleeve shirt embodiment. The long sleeve shirt has strategically placed non-slip rubber grip on the sleeves  8  of the shirt. (Outer arm region, over the outer (Posterior) side of arm located over the Triceps, Brachii, Brachioradialis, Supinator, Extensor Carpi Ulnaris, Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, &amp; Abductor Pollicis Longus muscle group area). The placement of the non-slip grip is preferably from the upper forearm over the elbow and terminating at the mid tricep region. As discussed above, the grip may be padded or essentially unpadded, and may be a single patch or be interrupted. The extents for the positioning of the non slip grip are, for example, from the posterior medial/lateral line of the arm wrapping around outwardly/posteriorly/laterally and terminating at the apex/point of the elbow. 
     According to one aspect of the invention, a moisture absorbent material  12 , such as a napped cotton towel material, is provided on the inner aspect of the sleeve, for example from wrist to underarm and preferably over the deltoid, so that a wearer may wipe sweat from the face and head, or other locations. (Shoulder and entire inner/anterior arm region, over the outer Acromial/shoulder region down the axillary/armpit region following down the brachial/bicep region and continuing over the antecubital/front of elbow and antebrachial/forearm region and finally terminating at the carpal/wrist region.) The towel/absorptive material preferably covers the Deltoid (Anterior), Biceps Brachii, Triceps Brachii (Median), Extensors &amp; Flexors of wrist and fingers Muscle Groups and terminating at the Retinaculum). This facilitates comfort, and permits the user to wipe sweat without reaching for a separate towel. However, it is noted that in the absence of an absorbent material, a wearer might still attempt to wipe sweat with the forearm, leading to wetness on the skin. This may lead to disadvantageous slipping under the garment. 
     The rear of the shirt may include a padded grip material  10 , disposed for example parallel to the spine (median back along the back groove and spine column region, over the spinal vertebral bodies, tranverse spinous process and intra-spinal column muscle group areas, C 4-7, T 1-12, L 1-5, Sacrum). For both gripping and padding for rolling on the back. The shirt may also have non slip grip on the lower back  9  (both sides of the spine in the lower back and coccyx, lower Latissimus Dorsi, Sacrum-5 lumbar vertebrae spinal group area) and mid back  10  (Both sides of the spine in the mid and upper back region (over the bottom of the scapular, Upper Latissimus Dorsi, Lower Trapezius, Thoracic vertebrae 7-12) between the spinal column. These grips  9 ,  11  are optionally padded. The padded grips are bulky and may impair stretching, and thus may impair flexibility. However, some wearers may prefer padding to a degree in these locations. 
       FIG. 8  shows a rear view of a three-quarter sleeve shirt, whose main difference from  FIG. 7  is the length of the sleeve, and an elastic edge, which in this case is larger and is intended to hold its location on the forearm, while in a long sleeve shirt, the sleeve is maintained in position at the wrist, which is smaller than the forearm, and therefore may have a less elastic band to anchor the sleeve. The shirt has strategically placed non-slip rubber grip  8  on the sleeves of the shirt (outer arm region, over the outer (Posterior) side of arm located over the Triceps, Brachii, Brachioradialis, Supinator, Extensor Carpi Ulnaris, Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, &amp; Abductor Pollicis Longus muscle group area). The grip may be padded or essentially unpadded, and may be a single patch or be interrupted. The extents for the positioning of the non slip grip are, for example, from the posterior medial/lateral line of the arm wrapping around outwardly/posteriorly/laterally and terminating at the apex/point of the elbow. A moisture absorbent material  12 , such as a napped cotton towel material, is provided on the inner aspect of the sleeve (shoulder and entire inner/anterior arm region, over the outer acromial/shoulder region down the axillary/armpit region following down the brachial/bicep region and continuing over the antecubital/front of elbow and antebrachial/forearm region and finally terminating at the carpal/wrist region. The Towel/absorptive material covers over the Deltoid (Anterior), Biceps Brachii, Triceps Brachii (Median), Extensors &amp; Flexors of wrist and fingers Muscle Groups and terminating at the Retinaculum), for example from mid forearm to underarm, so that a wearer may wipe sweat from the face and head, or other locations. 
       FIGS. 9 and 13  show rear and front view of a short sleeve shirt, which in this case differs from  FIGS. 6, 7 and 8  in that the lateral aspect of the arm does not have grip material  8 . Also, the absorbent material  12  extends only for a short distance (shoulder and inner/anterior bicep arm region, over the outer Acromial/shoulder region down the axillary/armpit region following down the brachial/bicep region and terminating over the antecubital/front of elbow region. The Towel/absorptive material  12  covers over the Deltoid (Anterior), Biceps Brachii, Triceps Brachii (Median)). 
       FIG. 14  shows a pair of thermal arm sleeves with grip and towel locations. These serve similar functions to the corresponding features of the shirt sleeve, with grip portions  8  (outer arm region, over the outer (Posterior) side of arm located over the Triceps, Brachii, Brachioradialis, Supinator, Extensor Carpi Ulnaris, Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, &amp; Abductor Pollicis Longus muscle group area) assisting in holding poses, and being optionally padded, and absorbent material  12  portions (Shoulder &amp; entire inner/anterior arm region (over the outer Acromial/shoulder region down the axillary/armpit region following down the brachial/bicep region and continuing over the antecubital/front of elbow and antebrachial/forearm region and finally terminating at the carpal/wrist region. The Towel/absorptive material  12  covers over the Deltoid (Anterior), Biceps Brachii, Triceps Brachii (Median), Extensors &amp; Flexors of wrist and fingers Muscle Groups and terminating at the Retinaculum) being provided to help control and absorb sweating during vigorous exercise. 
       FIGS. 15, 16 and 17  show thermal leg sleeves with grip locations. Similar to Capri&#39;s legs, the thermal leg sleeves have selectively provided grip locations on the outer thigh  7  (outer thigh, over the Vastus Lateralis, Iliotibial Tract, Rectus Femoris muscle group area), inner thigh  21 , hamstring area  2  (lower back of leg/Hamstring region, over the Adductor Magnus and Adductor Longus muscle group areas), rear of knee  3 , calf  22  (calf and back of knee region, over the Gastrocnemius and Soleus-muscle group areas), medial aspect of knee  1  (lower)(Inner thigh (Over the Sartorius, Gracilis, and Vastus Medialis muscle group area), and knee  6  (lower front Leg/Shin area (Over the Tibialis Anterior, Extensor Digitorum Longus, Peroneus Longus, Peroneus Brevis muscle group area). 
     The thermal arm and leg sleeves may be formed of similar material to the pants and shirts, e.g., Spandex®, or from a heavier more thermally insulating material. 
       FIG. 12  shows a knee-ankle support stretching strap with heel grip and stretching loops. As shown, a non-slip heel grip/stretching strap anchor  4  acts as a stirrup under the arch of the foot. Nylon stretching strap with loops  5  are provided at successive heights, anchored by the strap anchor  4 . Knee brace and support strap and stretch anchor  13  is provided on the upper aspect of the support. This may be a Velcro-type attachment, which can be adjusted for a firm grip, affixed to a neoprene or other material base. The upper-most nylon stretch loop  5  is attached inside the median and outside the lateral surface of the knee brace support anchor. An ankle brace and support strap and stretch anchor  14  is provided similarly to the knee brace,  13 , having a neoprene or other material base support strap with nylon and Velcro secure straps. The lower-most nylon stretch loops  5  is attached to the inside median and the outside lateral surface of the ankle brace support anchor support. The elastic band stabilizer  15  keeps the middle nylon straps  5  secure and snug against the wearers&#39; leg. An elastic loop holder  16  secures the stretching loops  5  snug against the nylon straps, when the stretching loops  5  are not needed, and keeps them free from catching and getting caught/snagged on something. 
       FIGS. 18 and 19  show a grip sock with integrated ankle support and stretching loop. A non-slip rubber heel grip/stretching strap anchor  41 , is provided in a stirrup position below the arch. Ankle brace and support strap and stretch anchor  14  is provided as a neoprene or other material base support strap with nylon and Velcro secure straps. Similar to the knee ankle support shown in  FIG. 12 , a pair of nylon stretching straps with loops  51  are provided on medial and lateral aspects of the ankle brace  14 . An elastic loop holder  16  is provided which secures the stretching loop  51  snug against the nylon straps when the stretching loop  51  is not needed, and keeps it free from catching and getting caught/snagged. A stretching toe loop  18 , which may be formed of nylon, for example, is formed at the front tip of a footwear structure which is integral with the device. The stretching toe loop  18  is typically linked to the anchor  41  with non-compliant (e.g., non-stretching) material. A non-slip sole/foot grips  19  are provided on the bottom of the sole for traction. Likewise, a non-slip rubber toe grip  20  region is provided on at least some of the toes. 
     While shown in the figures in generally geometric shapes, the non slip grip portions may be pressed in arbitrary shapes and color (butterflies, flowers, clouds, trees, animals, scenery or pictures), or characters, e.g., Chinese characters, and may be presented as words or sayings. 
     The non-slip strips are typically provided to increase the coefficient of friction of the surface in the region of interest to be greater than the typical clothing worn while working out or doing yoga. Indeed, in many cases, the difference in frictional coefficient over various regions may be more important than the absolute values. 
     In the above description numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be obvious, however, to one skilled in the art that the present invention may be practiced without these details. In other instances, well known process and materials have not been described in detail in order to not unnecessarily obscure the present invention. 
     Given the variety of embodiments of the present invention just described, the above description and illustrations show not be taken as limiting the scope of the present invention defined by the claims. 
     While the invention has been particularly shown and described with reference to the preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the invention. It is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.