Cryst - HD and Advanced Anti-Fog Technology Snorkel Mask Color:Grey The anti-slip silicone bars can

The anti-slip silicone bars can secure the strap tightly

to avoid direct light when driving

which can greatly reduce the damage of glare to your eyes when you are driving or exercising

Several ventilation windows are set up to allow external air to continuously enter the tent and keep the air inside the tent fresh

Cryst - HD and Advanced Anti-Fog Technology Snorkel Mask Color:Grey The anti-slip silicone bars canCryst is a single lens hard frame snorkeling face mask. A full piece of the high strength high definition lens provides uninterrupted high definition vision underwater. The 3D ergonomic design of the silicone skirt can fit a variety of face shapes without leaking. The portable and adjustable buckle makes adjustment easier. High strength Tempered Glass Lens: Cryst face snorkel mask use a whole piece of high strength tempered glass, which is wear