Keep the cold out & the warmth in while always looking on-trend with Muk Luks Men's Heat Retainer Hat. It�s form-fitting design and super soft lining give you casual comfort and warmth all day long. Base Material: 90% Acrylic, 9% Polyester, 1% Spandex Lining: Lined Lining Material: Acrylic Care: Machine Wash, Dry Flat Country of Origin: Imported