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 80% Nylon/ 20% Spandex fabric feels like a "second skin". This adds comfort and a sleek look to this 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 fit. Unlike our competitor's product our arm sleeve does not fall down when throwing or batting.  Improve your game and help to protect from arm related injuries with the Custom Sports Sleeves' Baseball Arm Sleeve. Many colors available. Made in the USA. Customize this sleeve for a unique, snug fit!