The Shark has been designed to contain a minimum volume of air while offering an extra-large field of vision. It's the ideal mask for deep and/or repeated free diving sessions. Ultra-clear HD lenses for faithful color rendering and improved contrastImproved comfort for greater pleasure in spearfishing and free divingThe very small internal volume of the Beuchat Shark mask significantly reduces the amount of effort needed to equalize pressure. The strap has a wide rear support band and a micro-adjustment system for closer fitting, better grip and greater comfort. The silicon skirt combines comfort with a close fit for a perfect seal. In addition, the mask's grainy texture helps prevent the fingers slipping during adjustment and during pressure equalization maneuvers. The mask's improved hydrodynamics make a real difference both when descending in free diving and while swimming on the surface. The Beuchat Shark mask is designed to incorporate sharp edges and curves to break up the silhouette in the same way as a stealth aircraft. Additionally, the grainy surface on the skirt of the mask reduces light reflection and makes it even harder to detect.