Workt Compression Knee Sleeve for Crossfit, Weightlifting & Powerlifting - Designed Exclusively By 7x Crossfit Games Athlete and Legend Chris Spealler - 7 Mil (black, Small) Developed and endorsed by Elite Crossfit Pro Chris Spealler - Rigorously tested in the gym and lab for optimal effectiveness Available in 5mm & 7mm - Extra-small, Small, Medium, Large & Extra-Large sizes Industrial grade neoprene - Heavy-duty stitching - Unique single-piece design Four great colors to choose from: Blue, Green, Pink & Red - Made in the U.S.A. Unique single-piece design ensures maximum compression & stability - Increases blood flow, reduces inflammation - Provides support and comfort for existing pain or injuries