The Seal 2.0 is a direct descendent of the original swim mask, the Seal, and is the perfect swim mask for fitness swimmers. Provided its large format wrap-around lens design, the Seal offers the widest field of vision of any goggle in the market and the soft silicone facial skirt integrates Aqua Sphere’s Advanced Fit Technology for a comfortable, water tight fit. Advanced Fit Technology Lens material: Plexisol® Outside protection treatment: Anti-scratch Inside protection treatment: Anti-fog UV-protection 100% 180-degree field-of-vision Skirt material: clear Silicone Highly hydrodynamic Strap adjustment: Lever buckles Latex-free