Silicone frames Polarised lenses Anti-fog coating paint [UV Polarisation] Polarised lenses eliminate most of the reflected and scattered light from the water surface. Even in strong outdoor sunlight, you don't have to worry about the light interfering with your vision and restoring true colours. At the same time, our adult swim goggles block all kinds of harmful rays such as UVA and UVB, so you can enjoy swimming without causing damage to your eyes. Super ComfortableMade of high quality soft silicone material, the ergonomic 3D frame is designed to fit any eye shape perfectly. Longer wear does not mean uncomfortable or leaky, better seal, but no raccoon eyes at all. Our swim goggles are pressure and crack resistant for total protection. [Professional Design] One-piece design, no assembly or splicing required. Buttons on the side of the frame allow you to adjust the length of the straps, simply press the button and pull the strap. The double non-slip straps securely surround your head and will never shift out of place. Our products are definitely the best swimming goggles for men, women and children [180 Clear Vision] Our men's and women's swim goggles feature curved lenses, which means an extra wide field of vision. Our crystal lenses give you a 180 high definition experience, helping you discover the underwater world and making swimming the most liberating of sports. Sturdy and DurableComes with a goggle case that's not easily damaged and is easy to carry, so take it and go swimming!