These Polar Extreme insulated thermal beanies are the best helping you keep your head warm and comfortable in all types of cold weather. The fiber content helps wick moisture away from your head keeping it nice and dry. The woven pattern material helps maintain the beanies shape. Soft brushed fleece lining adds an extra layer of comfort and warmth. One size fits most. Machine wash cold, tumble dry low. 96% Acrylic, 1% Spandex, 3% Other Fiber. Men's Polar Extreme Insulated Thermal Beanie in 2 Great Colors. A great beanie for the cold weather out doors type of guy.