Based on the technology and success of the original Seal swim mask, the original Seal XP offers a lower profile swim mask for recreational, open water activities. The Seal XP 2 utilizes Aqua Sphere?s proprietary Exo-Core bi-material frame technology that combines durability with maximum comfort.* Exo-Core technology with Softeril skirt* Patented curved lens with 180-degree field of vision* Micrometric strap adjustment buckles for a perfect fit* Lightweight Plexisol lenses offer 100% UVA/ UVB protection with anti-fog and anti-scratch treatments* Latex-free