CSI Skull Skinz Full Face, Neoprene Ski Mask, Reverses to a Solid Black Facemask, ( SFABLK ) Solid Black Design Stretchy neoprene material is warm and water resistant. Mask are Unisexed and adjustable to fit Late Teens - Adults. Vent Holes are provided for the Ears, nose and Mouth. Can be Worn w/ Goggles, glasses, helmets & other headwear. Includes a Bike Shop Supply Certificate of Authenticity / Warranty