ToBeInStyle Boys' Pack of 6 Seamless Boxer Briefs "Fast Race Car" Pull On closure Elastic waist band and leg openings Materials: 85% Nylon, 5% Spandex Machine Wash Cold; Hang to Dry Size Guide: Small (Ages 4-7), Medium (Ages 8-11), Large (Ages 12-14) Colors Randomly Selected from: Cobalt Blue, Green, Grey, Navy, and Royal Blue