Frameless mask our most compact & lowest volume mask. The frameless design allows us to bring the lenses close to the eyes, obtaining greater field of view and reduced internal volume. Excellent Choice for any diver, but escecially DEEP divers that want to get the lowest volume. Made with soft silicone for maximum comfort and easy to mold to your face. Quick tension adjustment clip on swivel. Tempered glass lenses provide maximum safety. The Avalon mask comes with a clear plastic hard case to keep you new mask safe.