Anti-fog: Polycarbonate lenses with special anti-fog coating give these swim goggles anti-fog and anti-scratch properties that allow for exceptional clarity and performance in the water. No Leaks: The goggles are equipped with hypoallergenic soft silicone gaskets that provide a comfortable swimming experience and a perfect waterproof barrier for your eyes. No water infiltration. No leaks. No discomfort around the eyes. UV Protection: Mirrored polycarbonate lenses include an additional ultraviolet resistant coating to shield the eyes from harmful UV rays and shield them from glare. The premium coating also provides a wide, clear viewing angle underwater. Ergonomic Design: Includes an interchangeable nose bridge so you can adjust it for the perfect nose comfort. The swim goggles also feature an adjustable silicone head strap that provides a one size fits all function making them suitable for adults, men, women and children. p>