Scuba Diving Snorkeling Mask Dry Snorkel Water Sports Gear Combo Set (Black) Sea-Viewer 2 Windows Silicone Mask: Ideal mask for normal adult (fits most faces), Two-window design with small upper joint for bright and clear view, Crystal silicone skirt with low volume, Durable, polycarbonate frame, Double edge comfort seal Integrated "Easy-Adjust" swivel buckles for easy adjustment, Dual tempered glass lenses, Made in Thailand, Prescription Lenses Available from -1.0 to -8.5 or +1.0 to +4.0 (Extra $50.00) Cobra 100% Totally Dry Snorkel with Signal Whistle: Unique 100% completely dry design - Patented upper valve keeps water from ever entering the snorkel. Air easily enters snorkel for clean, unobstructed breathing. The specially designed cover guard against water splashing into the snorkel. When the dry snorkel is submerged in the water the patented hinged seal reacts to seal the snorkel to prevent the water from get in. As you surface the hinged seal swings open allowing air to enter, Quick slip-in snorkel keeper, Flexible silicone corrugated low section, Pre-curved silicone mouthpiece (removable) to prevent jaw fatigue, Silicone purge valve for easy draining