With our Patented design, Sling Shot® Knee Sleeves are an evolution of our original. They are constructed to give mild compression and warmth to your knees while providing a super comfortable fit. The Sling Shot Knee Sleeve is designed to support everything from the rigors of IPF powerlifting to the crucible of the Crossfit competition. No matter your needs the Sling Shot Knee Sleeve will support you and give you the tools to achieve any goal. Level 2 compression is ideal for dynamic movements Soft material on the inside to prevent sliding and skin irritation Can be worn for any exercise or during your entire workout Stretch fabric perfect for dynamic movements Patented design creates a comfortable fit by removing seams from the front and back of the knee 7mm thick IPF/USAPL/USPA Approved Size Knee Circumference (in) XS 12 - 13 in S 13 - 14 in M 14 - 15 in L 15 - 16 in XL 16 - 17 in 2XL 17 - 18 in 3XL 18 - 19 in *Measure around the center of your knee with a straight leg.