TRI-MIX Frame - 3 distinct layers combined to produce one superior frame structure; Freedom Technology with Fit II adds strength and rigidness to the skirt for use in tough environments; UV 420 Lens Treatment protects against harmful high-energy visible (HEV) light and its potential to damage the Retina; 3D Strap offers unprecedented comfort and fit, unlike standard flat mask straps; Skirt Mounted Five (5) Angle Strap Adjustor allows for a five position micro-adjustment on both the left and right sides of the mask; TUSA's Anti-Reflective (A/R) Lens Treatment decreases internal and external reflected light to 95%; CrystalView Optical Glass Lenses provide superior clarity, color, and transmission of light; Quick-Adjust Buckle System - compact, lightweight, technologically advanced mask design that can be easily and quickly adjusted for a perfect fit; Round Edge Skirt for a soft fit that suppresses pressure and reduces creasing left on the face; Varied silicone thickness around the mouth and nose sections to create a secure fit and increase comfort while using your regulator or snorkel