The Swimmbrilles Professional Arena Cobra Core Mirror is a top-down choice. Innovative, mirror-image objectively offers aquacynamic sealing and reducing water turbulence and traction while providing protection against UV and anti-fouling. • Premium racing and training glasses; • Large field of vision, low profile and optimal sealing; • Protection against UV radiation; • Spotted glass polycarbonate lens; • Not PVC, without plasticisers; • You can be used for triathlons and swimming in open water.