Snorkel the easy way. The US Divers AirGo unique design utilizes a dual chamber exhaust system that separates exhaled CO2 from your inhaled air. This full-face mask system has a hypoallergenic silicone face skirt for ultimate comfort. SmartLock head strap designed for easy on/off assembly. Low profile, 180° lens for maximum visibility. Fog-free unique design prevents build-up of condensation. Submersible, dry top snorkel – designed to keep water out of the breathing tube above and below the surface of the water. One-way purge valve for easy clearing. Tri-Pad head strap connectors for a balance and comfortable fit. SmartFit Custom fitting holes for easy adjustments. Ultra-Glide coating prevents hair from being pulled. Quick-Release swivel buckles for easy adjustments. The US Divers AirGo is available in multiple sizes.