The Speedo Aquapulse Max swimming goggles feature a performance-driven, futuristic design & provide clear, mist-free vision ensured by an anti-fog lens coating. They use Speedo's most advanced technology with IQfit 3D goggle seal & IQfit tension scale for exceptional leak resistance & a secure precision-fit & guarantee 180-degree peripheral vision thanks to wide-vision lens. There is an easily adjustable silicone strap for maximum comfort while in the water & the goggles protect your eyes from ultraviolet radiation which makes them perfect for swimming outdoors.