The Custom Sports Sleeves' Athletic Baseball Arm Sleeve is designed specifically for baseball players. The compression will help to keep your arm loose and may help to protect from arm related injuries. The comfortable 80% Nylon/ 20% Spandex fabric feels like a second skin. This gives a sleek look to this arm sleeve. The real improvement that sets this sleeve apart is the elastic incorporated into the upper bicep. This elastic prevents the sleeve from slipping which adds comfort and gives you a snug, no-slip fit. Improve your game and help to protect from arm related injuries with the Custom Sports Sleeves' Baseball Arm Sleeve. Many colors available. Youth and Adult sizes available. Help to protect your arm from harmful UV Rays with our special formula. The sleeve goes through a special process that boosts the UV protection ability of this sleeve as well as making it waterproof. This means this sleeve can wick sweat keeping you cool and dry during the game. Our competition claims that their arm sleeves can wick sweat. They make this claim on nylon's natural wicking abilities. This arm sleeve is treated to give you the coolest and driest fit on the market today! Proudly made in the USA.