Heat Holders Men's USA Thermal Beanie - Heat Holders Men's USA thermal hats are created with our high performance thermal yarn and HeatWeaver insulation lining to maximize the amount of warm air held close to your body. Enjoy the patriotic design and knit pom pom! 76% Acrylic/24% Polyester outer fabric Lining 100% Polyester New HeatWeaver plush lining Advanced insulating yarn Machine washable at 40° 8.3in High, 9.25in Wide Style: HHM051