1. Soft Material: This skull cap is made of durable stretchy 60% Acrylic fiber + 40% Polyester and soft-spun knitted which are eco-friendly, lightweight and comfortable. With its light weight, this hat will not cause pressure on your head while keeping warm 2. Double Protection: Being consisted of knitting yarn outside and fluff lined hat inside, warm beanie hat is going to protect your from the cold winter. It is the warmest winter hats cover ears, also called ear beanies men hat 3. One Size Fits All: Specially designed for men. The hat with fashionable knitting pattern provide you both warm and trendy experience. One size (10 inches long and 9 inches wide) ,fit the head circumference: about 22 inches - 23.2 inches 4. Windproof and Thermal: These warm stretchy hat can cover your head, ears with super warmth and windproof. Enjoy your good time during hiking, camping, skiing, cycling running, skating, snowshoeing and other sport