U.S. Divers Sideview Silicone Mask and Total Dry Submersible Snorkel Combo Set Snorkeling bundle with Sideview Pro Tech mask, Total Dry snorkel, and storage bag Float mechanism in snorkel tube instantly closes when submerged to keep water out Contoured barrel is ergonomically shaped for best positioning in the water Sideview mask offers hypoallergenic face skirt and 4-window polycarbonate lens Easy-adjusting swivel buckle; translucent blue highlights; 2-year limited warranty