p Feature Non-slip silica strips dsign The design of the open patella with pad reduces compression but providing better alignment of the patella Unique "Y" strap for adjustable compression and comfort Aerated neoprene reduces excessive heat Applications Warmth Knee pain Mild ligament sprain Patella malalignment ​SIZE : Measure the circumference of the knee S - M 11 - 141/4 (inch) 28.6 - 36.2 (cm) L - XL 14 - 17 (inch) 35.6 - 43.2 (cm) What's in the Box : 1piece x Adjustable Patella Support /p