FiveBox 2-Pack Adult Waterproof Anti-Shatter Uv Protection Swim Goggles for Men Women,Watertight Swimming Glass for Indoor and Open Water Swimming with Glass Case Material: Made of High-class PC glasses and high quality silicone, 100% UV protection, and Anti-fog coated, and watertight; Strap adjustment is quick and easy. Soft and comfortable: The headstrap is made of 100% soft and elastic silicon, comfortable to wear, as well as prevent eyeglass slipping during swimming. Special design: The adjustable side buckles offers different size options to Fit Any Size, Very easy and handy to use to adjust the strap to shape your eyes and face properly. Safety and Reliable: Ergonomic completely sealed silicone protective circle design can help to reduce the pressure around the eyes with good non-fogging and anti-UV effect ,let you enjoy swimming. Clear visibility and Anti-fog: The wide-angle, clear design means that you have great all-round vision, 100% UV protection for brighter conditions and anti fog coating for frustration-free swims.