Polarized lens for better eyes-protection with mirror reflection/clear lens options.Wide-view vision under water for optimized lens, crystal clear and clean view.Perfect seal: ensure impermeability.Suitable for: Early teens to Adult, multiple colors for unisex.Sports: Swimming, surfing, triathlon, kayaking, jet ski and etc.IPOW Seal Swim Goggle Watertight Anti-fog Adjustable Strap Large Clear Lens Waterproof Eyes Protector for Kid Teen Adult Swimming & Diving,BlackEasy-to-adjust Buckle System:Easily adjustable strap buckles, and comfort through ergonomic designs and proprietary materials.The mask buckles are easy-to-adjust, preventing distraction to swimmers while swimming, snorkeling, and diving. Once fitted properly, the straps will not need to be adjusted again once in use. To tighten, simply pull the strap towards the back of the head. To loosen, lift the buckle and pull the strap.Clear Lens:Transmit a natural light, which makes it ideal for low light, overcast conditions where maximum visibility is required. Clear Lens is also ideal for consistent lighting as it provides accurate vision without filtering our color.A soft one-piece frame fits comfortably against the face and adjusts with a soft silicone split head strap.The IPOW Seal Swim Goggles addresses the needs of all swimmers, whether swimming in the open water or indoors.IPOW Swim Goggles Highlights:Polarized lens for better eyes-protection with mirror reflection/clear lens options.Wide-view vision under water for optimized lens, crystal clear and clean view.Dual-strap at back for less pressure for head and comfortable wearing experience for long time swimming.Safe and non-allergy silicone material on frame and gasket, odorless, latex-free, curved eyes socket for better waterproof.Special treatment of UV protection and anti-fogging on outside and inside the lens, cut the clear and sunlight reflection under the pool.Easy adjustable strap, simply push the button on each side and adjust the strap to fit your head properly and smoothly.