U.S. Divers Lux Grenada LX Snorkel Purge Mask with Ryder Fins and Pro Bag Set High-tech, 4-window mask provides maximum visibility Hypoallergenic silicone face skirt for ultimate comfort Built in purge valve keeps mask clear of water Submersible dry top snorkel with Flapper-Dry Technology Hypoallergenic silicone mouthpiece for ultimate comfort