Engineered with AirTek mesh, these arm sleeves wick moisture away from the skin, accelerating evaporation to keep you cool, dry, and performing at your peak during intense games and workouts. Designed for athletes, the snug compression enhances blood flow, reduces muscle fatigue, and supports quicker recovery, making it ideal for football, basketball, baseball, and weight training. Shields your arms from turf burns, scrapes, and minor impacts while maintaining full mobility. Trusted by athletes, this sleeve is NCAA & NFHS compliant for game-day wear. Featuring an inner elastic band, this compression sleeve stays locked in place without slipping or bunching, allowing you to focus on the game without constant adjustments. Sizing: Size Medium: 8" to 11" biceps. Size Large: 12" to 15" biceps. Measure your biceps with your arm extended and unflexed. Fits true to size. If unsure, size down for a more compressive fit or size up for a more relaxed fit.