Easy to use and fit for most people
As a classic brand, the Greatever mask is beloved by fans, even though it has been around for years. The mask is easy to adjust and has a low internal volume, ideal for deep freediving, and the skirt is small, but the mask easily adapts to a variety of face shapes.
Dry top system
the latest float valve design effectively controls water flow and air,above water,the value opens to let in air,under water,the value is closed to prevent water from leaking in