UM-7500 Mask > Hypoallergenic Crystal Silicone Skirt and Strap > Lightweight low-profile 2-window design for maximum field of view > EZ adjust buckle technology > High quality polycarbonate frame > ClearVu tempered glass lens > Fits Adult Small to Medium faces > Hypoallergenic Crystal Silicone Skirt and Strap USP-190 Snorkel > Hypoallergenic Crystal Silicone Flex-Neck and Mouthpiece > Hyperdry Technology reduces waterflow into the snorkel > Large capacity drain chamber and purge valve for easy clearing > Ortho-consciously designed mouthpiece for ultimate comfort