ScubaPro D-Mask Dive Mask with HUD Adapter, Comfort Strap, Frames, and CaseSharing the design scheme of the new D Series D420 regulator, the new D Mask is a sleek, premium mask well suited for all types of diving. The D Mask benefits from SCUBAPRO's second generation Trufit technology. This design approach features a mask skirt with thicker, firmer silicone near the mask frame to provide support and rigidity, and thinner silicone contouring the face for comfort and to ensure a watertight seal. The mask features true color UV