Small Size Fits for Teenagers - Double Knot Design, fully adjustable strap offered flexibility to make adjustment for tightness, fits for sizing of 9-11.5 inches in circumference Comfortable And Stay in Place - Adapted high quality raw materials and standardized production techniques, soft and breathable fabric with smooth edges and fine stitches make you wear without any discomfort, always stay in place after a long period of exercise Shock-absorbing And Knee Pain Relief - Segmented fix design can make adjustment according personal knees’ curves to supply better protection of patella, and do make a difference for your knee Applicable Scene - Suitable for a variety of sports scenes, such as basketball, running, fitness, training, Jogging, especially for intense sports that require frequent jumping and landing, which can improve sports performance 100% Risk-Free Satisfaction Guarantee - Our knee straps are tested in real-life situations by demanding users, and are constantly updated based on your feedback. Any issue, please contact us by e-mail. Our efficient customer service will surely offer a satisfied solution IPOW Knee Strap XS