Full face Snorkeling mask double and single air channel
Full Face Snorkel Mask Swimming Breath Dry Diving Goggle Scuba Glass Anti-Fog L/XL pink and S/M pink or yellow Features 1. NEW Design Double Air-flow Channels for Easy Breathing, inhaling and exhaling separate channels structure, assure there is enough oxygen stay in the mask and the carbon dioxide would flow out separately, allow you to breathe easily through nose or mouth under the water 2. 180° FULL FACE DESIGN - 180° Large viewing area lets you enjoy undistorted visibility and see breatht