Zan Headgear WNFM168HGSP, Half Mask, Neoprene, Glow, Bone Breath, Spikes Stretchy neoprene material is warm and water resistant. Mask are Unisexed and adjust to fit Late Teens - Adults. Reversible so it's like getting 2 Mask for the Price of 1 Can be Worn w/ Goggles, glasses, helmets & other headwear. Includes a Bike Shop Supply Certificate of Authenticity / Warranty