Buy Caps and Hats Patriotic American Flag Skull Cap Headwrap One Size Multicolor 100% Eco-Cotton Patriotic, American Flag Biker Skull Caps. Cotton dries quickly and thin enough to fit under helmets and caps. One size fits many, not all. May not fit large x-large heads. Unisex design for men, women and some teens The red is darker and closer to a light maroon color.