This is the Scubapro 2mm Dive Beanie x-foam Neoprene Beanie Features: Made with quality 2mm X-Foam neoprene. The outside of the beanie has two-tone stretch, and the inside has stretch plush. Available in a choice of Black or Gray. Choose from two sizes in each color. Stay super comfy and warm before and after the dive with a neoprene beanie. Protects the head and ears from cold air and brisk winds.