Casualbox Womens Mens Night Cap Beanie Hat Sleeping Indoor Wear Hair health 54% Cotton, 35% Acrylic, 7% Nylon, 4% wool Keeps hair healthy at night by reducing split ends caused by friction on the pillow As a night cap it prevents colds by keeping in body heat Made from mostly cotton and with some wool, the beanie offers very good protection from the cold during colder seasons and will help to stave off a cold or flu Made in Japan Size: One size fits all. Approximate dimensions when flat 11.4 inches long and 6.7 inches wide