ToBeInStyle Boy's Pack of 6 Graphics Boxer Briefs Pull On closure Seamless. Assorted Colors. Materials: 90% Nylon, 10% Spandex, except: Car Race, Charging T-Rex, Flame Racer, Formula Racing, Soccer Boy, Sports Car, Tractor and Tyrannosaurus Rex: 85% Nylon, 15% Spandex, Plain: 60% Cotton, 40% Polyester Machine Wash Cold. Do Not Bleach. Do Not Iron. Lay Flat to Dry. Sizes: Small (Ages 4-6), Medium (Ages 7-11), Large (Ages 12-14) Styles: Bike Riding Dog, Boat, Car Race, Charging T-Rex, Eagle, Eagle & Flag, Flame Racer, Fighters, Formula Racing, No. 1 Soccer, Plain, Pouncing Tiger, Race Car, ROBOT, Robot & Sports, School Supplies, Soccer Boy, Solid, Sports Car, Striped, Tiger Symbol, Tractor and Tyrannosaurus Rex