IST Pegasus Full Face Black Dive Mask Watches The second stage valve is

The second stage valve is pneumatically balanced resulting in unparalleled performance and consistent breathing from start of dive to end

5 fun designs

Powered by one 18650 battery

or fold under pressure or in turbulent conditions

Montana® 680

IST Pegasus Full Face Black Dive Mask Watches The second stage valve isPegasus Full Face 2 Window Mask No need to bite onto mouthpiece: eliminates jaw fatigue and or denture slippage; Multi strap adjustment comfortably fits all adults, easy nose access for equalization; Allows for the attachment of most types of regulators or snorkel; Comfort fitting and adjustable fits all adults. Silicone skirt and strap with low volume; Tempered glass lenses for maximum strength and clarity.