[2nd Generation] OlySpeed&reg; Alien Dry Snorkel,Blue Easy Clearing - Purge valve for easy clearing Completely Dry - top prevents water entry Designed And Created - Using Innovative and Patented Manufacturing Technology Comfortable Fit - Always A Comfortable Fit for 2016 OlySpeed Alien Innovation Snorkel Mask for Diving & Snorkeling,for Adult DESIGNED FOR SURFACE SNORKELING (for Adult) & 100% SATISFACTION GUARANTEE - 30 days return and money back guarantee. Full 1 Year Warranty.