RedHeads Mens Mountain Beanie is really warm. The shell is made from 100% acrylic for reliable warmth, but if youve worn a beanie on a windy winter day, you know how quickly the breeze can penetrate loose-knit fabric. So, they added a 100% polyester lining for added warmth and wind protection. When the weather turns cold, you can rely on the RedHead Mens Mountain Beanie. One size fits most. Imported. Colors: Smoke Heather, Stratus Heather (not shown), Black (not shown), Kelp Heather (not shown). Type: Headwear.