The Ino Pro, in addition to all the features of the original Ino mask, offers a deluxe lens experience with UV 420 Lens Treatment, Anti-reflective Lens, CrystalView Optical Glass, and Freedom Film to prevent mask fogging. One-Window mask designed for divers with smaller face shapes. Wide field of view is achieved by placing the lens closer to the face. A low volume mask. Varied silicone thickness with a proprietary low-friction skirt surface of the fitting line. Similar fitting technology as the popular INTEGA and ZENSEE. UV 420 Lens Treatment. Anti-Reflective Lense. CrystalView Optical Glass. Freedom Film (Small/1-piece). 3D SYNC Technology. Round Edge Skirt. Swift Buckle 3D. 3D Mask Strap.