WolfWise Fitness Ab Mat & Exercise Balance Pad, PU Leather Gymnastics Mat Sit-Up Pad Cushioned Foam Mat, Non-Slip Soft ERGONOMIC DESIGN: Our ab mat is the perfect size for supporting your lower back while you work your abs. The mat is thicker on one side, more sloped on the other to follow the contours of your back. It's also available with an Tailbone Protector for preventing tailbone chafing on high-rep workouts. VERY USEFUL - The ab exercise mat isolates the abs and takes the hip flexors out of the equation so that you can do perfect situp reps . Our quality fitness equipment provides complete isolation of your abdominals during crunches , leg lifts and sit-ups . This workout equipment for abs will not hurt your lower back making this your most effective abs workout. THICKNESS & MULTIFUNCTIONS: 3.42 inches thickness high-density foam with high elastic buffer which helps to absorb impact and provides excellent cushioning. It is ideal for professional and personal use in physical therapy, rehabilitation or fitness exercise. Its also great for neck/head support when learning handstand push ups. WATERPROOF & NON-SLIP - Constructed out of odor-free, toxic-free environmental friendly PU materials. The waterproof closed cell foam provides long lasting durability. High-density stitch to prevent tearing, it has good anti-compression and anchorage force when doing plank. EASY TO CARRY: Compact, durable and foldable, it stores easily and the lightweight construction makes it easy to be carried around and used in anywhere.