100% Polyester Imported Pull On closure Machine Wash Get your young fan ready for game day in these NBA Kids Youth 4-20 Official On-Court Box Out Game Time Performance Shorts. These shorts feature an elastic waistband and for a secure fit, as well as side pockets for small-item storage. Made from 100% recycled polyester, these shorts are lightweight and quick-drying, making them perfect for any activity. Whether your kid is headed to the court or the playground, they'll be comfortable and stylish in these shorts.