The Zoggs Aqua Flex titanium swimming goggles are designed for open water swimming & have been approved by FINA (Fédération Internationale de Natation). They provide a close & comfortable fit thanks to a larger frame & offer Curved Lens Technology ensuring 180-degree visibility. Reduced eye fatigue is provided by titanium lenses which diminish glare & there is anti-fog Fogbuster technology delivering great moisture management & constant clarity of vision. The goggles guarantee maximum UV protection & have a durable, split-yoke silicone strap for quick & easy adjustments. They use a unique 4 Flexpoint Technology for excellent frame flexibility & feature clear gaskets for enhanced light balance.