Leak-Proof 3D Ergonomic Design High Quality Silicone Material, 3D Ergonomic Design Is Perfect For Different Face Shapes And Reduces Marks Around The Eyes. Digital Positioning Straps Can Intuitively Adjust The Tightness And Prevent Water Leakage. The Goggles Feature Advanced Anti-Fog Technology. The Inner Lens Is Coated With An Anti-Fog Treatment To Prevent Water Vapor Condensation. The Anti-Fog Effect Lasts More Than 3 Years. Anti-Uv Mirror Coating With Powerful Uv-400 Protection Effectively Blocks 100% Of Harmful Uva And Uvb Rays During Swimming. The Lenses Have Built-In Uv Protection So They Won'T Fade Or Fade Over Time. The Hd Underwater Vision Lenses Are Made From 100% German-Sourced Polycarbonate. High Speed Molding Lens, Clear And Not Fragile, Good Light Transmittance. The 120 Wide-Angle Lens Gives You Better Underwater Vision. What You'Ll Get: 1X Swimming Goggles; 1X Swimming Cap. ,"