ANTI-FOG: Li-Ning swimming goggles with anti fog coated lenses that are treated with latest environmental antifog chemicals technology offers you a free swimming. The ANTI-FOG coating that helps to prevent goggles from fogging up in the water, and offer a Wide Range of Vision with Crystal Clear results. UV PROTECTION: This mirrored swimming goggles features Polycarbonate Lenses that are strong, resist cracking and offer UV Protection to keep away damage of the sunrays and reduces the amount of light coming in and help keep the glare down to offer outdoor swimmers a more enjoyable swimming. NO LEAKING: The seal are made of double-layered, soft silicone for extreme comfort and leak prevention. A good seal of Li-Ning swimming goggles can help to protect your eyes from the chlorine and other chemicals found in swimming pools as well as dirt, debris and bacteria and prevent irritation and blood shot eyes. ADJUSTABLE STRAP: The swim goggles features adjustable head strap that offers a great fit as well as meaning the goggles expand in size, which is Suitable for ADULTS, MENS, WOMEN, JUNIOR and KIDS 10+ Years Old. the unique Quick Release Strap locks and unlocks in the back with ease and quickness. COMFORTABLE DESIGN: Black swim goggles are made with hypoallergenic silicone frames that mould to the shape of faces, preventing rubbing for ultimate wearing comfort and helps to reduce marking around eyes after swimming. Warranty for One year from date of purchase.