Diamond Plate Skull Caps are both stylish and functional. Light and comfortable cotton make these skull caps perfect for wearing under a helmet or as a standalone headwear accessory. They are great for cold weather to help retain heat and excellent in hotter weather to keep sweat out of the eyes. Long enjoyed by bikers, skull caps have found their way into labor intense work as well. From construction workers to sailors, hard-working people everywhere have found the skull cap to be a useful piece of clothing to keep grease, oil, dirt, and debris out of the hair. Diamond Plate assorted cotton skull caps feature six unique biker designs with black and white skulls, black with white motorcycles, bright and colorful American flags, black with pink skulls, white dragon on black design, and a classic black and white print. Unisex. Washable. One size fits most.