98% Polyester / 2% Spandex THESE ARE OFFICIALLY LICENSED SUPER MARIO BROS. SOCKS, GUARANTEED – This Nintendo Super Mario sock set is manufactured by Bioworld, one of the leading pop culture companies in the world. Quality is always guaranteed and the products are made with customers like you in mind! COMFORTABLE & STYLISH – Made with a super soft and stretchy dual-blend fabric for that extra comfortable feel when lounging or walking. DETAILED CLASSIC NES GAME DESIGNS – This ankle socks set features 5 different pairs each with their own designs inspired by the classic video game that started the Mario craze. The pairs have retro designs of characters like Luigi, Mario, Bowser, Princess Peach and board designs from the video game. SIZING IS AS FOLLOWS – These are Sock Size 9-11 which translates into Women’s Shoe Size 5-10 and Men’s Shoe Size 5-8. CARE INSTRUCTIONS – Machine wash cold with like colors, tumble dry low. Do NOT bleach.