A chunky, thick beanie is simple, warm and good looking. Especially with AirWair loop branding. Heavy Knit Beanie Hat is made of 70% acrylic and 30% wool. Hand wash only. Dr. Martens' appeal to people who have their own individual style but share a united spirit, authentic characters who stand for something. People who possess a proud sense of self expression. Material: Acrylic, Wool.