Created from a Japanese innovation called "Zokki", Tabbisocks' 23 Colors Opaque Tights are made of anti-static, non-toxic covered-yarn which improves flexibility and durability. The fabric is exceptionally smooth and the beautiful colors stay opaque even when stretched-out. The special nylon threads also absorbs moisture to keep your feet smooth. Size: Small to Medium: Height 5'-5'8'', Weight 90-148 lb Tall/ Large- Plus : Height 5'5''-6'0'', Weight 130-178lb 98% Nylon, 2% Spandex Made by Craftsman in Japan Machine wash warm, tumble dry low.