Color: Black<br>Size:S-XXL. <br><i>S(fit waistline 25.6"-31.5"),M(fit waistline 28"-39.4"),L(fit waistline31.5"-39.4"),XL(fit waistline 35.4"-43.3"),XXL(fit waistline 39.5"-47.3").</i><br> <B>DO YOU NEED A BACK POSTURE CORRECTOR ? </B> <br><br><i>- Are you constantly hunched over acomputer or cell phone ? <br> You are not alone; Because of technology our posture is the worst it's ever been. <br> Finally, there's a quick and easy way to improve your posture - The posture corrector. <br> <br></i> <B>WYLLIELAB Back Posture Corrector Features : </B> <br><br> <i>Enhance Temperament and Confidence <br> Look Straighter and Taller <br> Light and Comfortable <br>Adjustable for Convenience <br>Back Pain Relief <br>Fit 30-45'' Chest Circumference</i> <br> <br><B>Why I feel pain when using this posture corrector ? </B> <br> <br><i>It’s normal to feel mild discomfort and awkward at first, because most of us have been slouching for years. <br> But soon you will notice an increase in your awareness of your posture, and sitting and standing upright will begin to feel natural. <br> When you feel pain, you may make the posture corrector a little loose and put the armpit pads we give away on your armpit. </i> <br><br> <B>How to adjust the tightness of my back posture corrector for the best results? </B><br><br> <i>We suggest you to divide 3 courses into 3 weeks as follows : <br>Adaptation period: Should not be too tight for giving your back and spine a little time to adapt slowly. <br> Adjustment period: Might make your posture brace a little tight to improve your posture. <br> Maintenance period: Keep the tightness of posture corrector in order to maintain your muscles memory.</i> <br><br> <B>How long do I wear the posture corrector each time ? </B><br><br><i> We suggest you begin with 15 minutes and increase the time slowly from 15 minutes to 2 hours. </i><br><br><B> You may increase or reduce the time base on your own situation or feeling. </B>