swimming goggles adult ANTI-FOG: anti fog coated lenses that are treated with latest environmental antifog technology offers you a free swimming. UV PROTECTION: The goggles features Polycarbonate Lenses that are strong, resist cracking and offer U V Protection. ensure a snug fit on different facial forms. COMFORTABLE: made with hypoallergenic silicone frames that mould to the shape of faces, preventing rubbing for ultimate wearing comfort