These swimming goggles from View come with new SWIPE ANTI-FOG technology. With SWIPE ANTI-FOG technology you can clean the lens with a few finger swipes and clear vision will be restored. Compared to other goggles, the new SWIPE goggle the anti-fog properties last 10 times longer. These latest swimming goggles from View are designed for training and leisure swimming. They have large cushion seal for superior comfort so that you can focus on your swim. Features: SWIPE ANTI-FOG technology these swimming goggle use a layer of water to avoid fogging. However when oil or other particles stick to the lens, the anti-fog performance decreases. €œSWIPE ANTI-FOG€ can clean the lens by 5 to 10 finger swipes and clear vision will be restored. Compared to other VIEW goggles, the new SWIPE goggle anti-fog lasts 10 times longer. UVCUTVIEW's UV Cut technology provides superior protection from harmful ultraviolet (U.V.) rays. Increasing exposure to U.V. rays which damage the skin and eyes has become a serious problem. U.V. protection provides greater eye protection during outdoor use. Silicone Seal VIEW's 100% high grade silicone seals offer the softest and longest-lasting eye seals available on the market today. Surgical grade silicone is non-allergenic and resists stretching and fatigue from prolonged use in chlorine, reducing leakage and replacement. Silicone Strap VIEW's high grade silicone straps offer the softest, most pliable and longest-lasting straps available on the market today. Surgical grade silicone is non-allergenic and resists stretching and fatigue from prolonged use in chlorine. Mirrored Lens VIEW€™s mirrored lens reduces glare that can impair the swimmer's vision by reflecting sun light. This feature drastically improves swimmer's vision. SWIPE ANTI-FOG Instructions Wet the inside lens surface and firmly swipe a few times with your finger. Anti-fog will eventually deteriorate with long term use. When anti-fog does not perform as before, please use an anti-fog liquid from our company. Other company€™s anti-fog liquid may cause damage or cracks to the plastic lens.