Soft & No Leakage:The silicone gaskets are super-soft and comfortable. High-quality silicone material provides a high degree of comfort and sealing, do not worrying about leaking, keep your eyes away from bacteria and keep them healthy. never leave red marks around eyes and nose for hours after swimming.The one-piece frame and soft silicone at the nose bridge also reduces the burden on the nose bridge. Shatter Proof lens & Anti-Fog Coating coating:Our anti-scratch, shatter proof Polycarbonate lenses come with a specially formulated anti-fog coating guaranteed to keep them fog free. special wide angle design,Get a clear view underwater. Easy adjust & No more stick hair:The most easily adjustable Strap, just slide the buckle to adjust the tightness. Bungee Strap has enough length, from toddler to Youth can easily put on, when not in use can also be hung around the neck .Our Bungee Strap have strong elasticity and are very comfortable to wear on the head.Bungee Strap do not get stuck any hair.Say bye to Hair Pulling