The helmet hat's with good elasticity to fit melons of all shapes and sizes, no stress about the size and a unisex one, large heads,small heads, thickness hair or no hair. These skull hats can be worn by men and women for a bunch of different activities indoors or outdoors,it can be worn as a helmet liner wore under helmet hard hat when you're mountain biking, road racing, motorcycling or hitting the slopes and to be beanie when you're walking, hiking, running, gym, mountain-climbing,tennis, dancing etc.
