Trendy Apparel Shop White American Flag Acrylic Winter Knit Skull Short Beanie. 100% Acrylic . Plain short knit beanie hat for all winter outdoor activities such as snowboarding, camping, skiing, snow trips and others. Beanie measures around 7 inches wide and 7.5 inches deep. Thick, soft and flexible material. Easily stretchable, ensuring a comfortable fit for most head types. One size fits most with flexibility.