ToBeInStyle Boy's Pack of 6 Seamless Boxer Briefs "Race Cars" Pull On closure Stock up on these 6 Pairs of cool and stylish Boys Boxer Briefs, and your kids will be in complete comfort. Sizes: Small (Ages 4-7), Medium (Ages 8-11) and Large (Ages 12-14) 85% Nylon 15% Spandex Machine wash warm; tumble dry Black, Brown Burgundy, Grey, Light Blue, and Navy