The Nike Kobe Dri-Fit Baseball Arm Sleeve in size S-M is a solid blue arm sleeve made of polyester blended fabric. It features a pullover closure and is machine washable. Designed for athletic fit, this lightweight arm sleeve is perfect for baseball activities during the spring, summer, and fall seasons. The Nike logo accents the sleeve, adding a stylish touch to your activewear collection. Perfect for sports enthusiasts looking for quality and performance in their clothing choices.