Fit & Design: A perfect combo of form and function, the Sandbar style is perfect for any outdoor adventure Crafted of buoyant TPX frame materials, these sunglasses are unsinkable — so you can easily retrieve them from the water Lightweight lenses are 1.1mm TAC polarized with multi layered anti-salt water coating Internal Temple Hinge Construction Built-in nose pads keep sunglasses in place 6 base lens curvature Medium frame fit Additional Details: Lifetime warranty