Arena Cobra Ultra unisex goggles are high quality and perfect for competition. They are designed for athletes and swimmers looking for high-end competition goggles with a hydrodynamic design. The revolutionary Arena Swipe Anti-Fog technology lasts 10 times longer and is reactivated with a simple slide of the fingers on the lenses. With the goggles in the water, gently slide your fingertips across the goggles five times making sure there is no dirt. Repeat the operation each time fog forms on your goggles to enjoy perfect vision for longer. Small frame and aero seal provide stable support and reduce drag. The innovative lens design reduces water turbulence and allows you to swim even faster. Curved lenses dramatically increase frontal and peripheral vision. For a wide field of vision and better side vision for competitors. Include two sets of five interchangeable nose bridges to adjust the goggles to different nose and face shapes. The double strap is easily adjustable at the back of the head and guarantees a stable support, even when starting and when cornering. With branch system for enhanced stability. The goggles have mirrored lenses, UV 400 protection, and are PVC free. An Arena hard goggles case is available separately to protect and transport the goggles safely. The anti-fog treatment is easily renewed using Arena anti-fog spray tolerated by the eye, available separately.