Maybee Adult Swim Goggles for Men and Women with Anti-Fog , Anti-Shatter Swimming Lenses , Quick Adjusting Silicone Head Strap With Free Protective Case (Black) Swim Goggles:Mirrored lenses that can reflect bright sunlight away from your eyes. Best for triathlons, open water swims and other recreational outdoor swimming activities ANTI-FOG:Coating treatment and UV protection. 100% PVC and latex free. Goggle's Silicone clasp and straps are easily adjustable from both sides with a simple pull of the strap! Ergonomic and completely sealed silicone protective circle design, help to reduce the pressure around the eyes and let you enjoy swimming Silicone clasp and straps are easily adjustable from both sides with a simple pull of the strap! SOFT silicone gasket around the eyes is super comfortable and does not leave red marks around your eyes for hours after swimming