The Heat Holders® Men's Hudson Fine Rib thermal hats are created with advanced thermal yarns and super soft HeatWeaver® insulation lining to maximize the amount of warm air held close to your body keeping your head warmer for longer. The Hudson hats are sewn to better fit the contours of your head, maximizing insulation, and providing a smart, fashionable look. Features: Moisture Wicking Base Material: 100 Acrylic Lining: Fully Lined Lining Material: Polyester Care: Line Dry, Hand Wash, Machine Wash, Dry Flat Country of Origin: Imported