With our new Float Polarized Sunglasses, you will never lose a pair of sunglasses at the bottom of the lake, river, ocean (or pool) again! These floating sunglasses are equipped with new technology TAC Polarized lenses. TAC (Tri Acetate Cellulose) Polarized lenses offer superior visual and polarization clarity. They are hard coated to resist scratching and block out 100% of all harmful UV rays up to 400 nanometers, and are also very lightweight and highly impact resistant. Aerodynamic frame with side windows provides unobstructed peripheral vision. Fit Small to Medium Head Sizes.