Hind Boys Performance Shorts, 3 Pack, Sizes 8 20 Walmart.com Athletic Works Boys Performance Shorts, 2 Pack, Sizes 4 18 & Husky Old Navy Pooler GA Boys Quick Dry Shorts Old Navy Vineyard Vines. Elevate your young athlete's style with our Boys Performance Shorts in Navy. Designed for maximum comfort and performance, these shorts feature moisture wicking fabric and the perfect length for any activity. Whether playing golf or running around, your child will feel great and look stylish (kid and mom approved). 95% Polyester, 5% Spandex. Machine wash cold, tumble dry low. Size: XS (4 5), S (6 7), M (8 10), L (10 12), XL (12 14). Pockets and elastic waist with drawstring. Imported.