Promate Snorkeling Scuba Dive Dry Snorkel Mask Gear Set, Tblue, 7590

2-Window Snorkel Mask: Fits a wide range of facial profiles. Ideal for medium to large faces. Crystal, liquid silicone injected skirt and strap. Double skirt edge comfort seal. Low volume. Easy-adjustable buckles and comprehensive swivel. Tempered glass for safety. Made in Thailand. Dry Snorkel w/ Signal Whistle: A 100% submersible dry snorkel features upper valve and hinged seal keeps water from entering the snorkel as in submerge; but allows air to easily enter snorkel for clean and unobstructed breathing as on surface. Specially designed cover guards against water splashing into the snorkel. Slip-in snorkel keeper with quick release retainer. Flexible silicone corrugated low section bends easily. Colored whistle housing to get attention. Pre-curved silicone mouthpiece, prevents jaw fatigue. Silicone one way purge valve not only keep water out from snorkel but for easy draining.