Zone 3 Viper Speed Swim Grey Tinted Durable Goggles | Lime/Black These goggles by Zone3 have been designed specifically for pool based speed sessions! They are goggles that focus on reducing drag with a streamlined hydro-dynamic design. They are super comfy as well as anti-fog allowing for optimal performance and superior comfort while you enjoy your swimming session. Features    Streamlined hydro-dynamic design reduced drag in the water to help you achieve your next pr. Ultra-soft silicon gaskets minimise pressure around the eyes keeping you comfortable during both open water and pool sessions. UltraFAST QuickFIT strap adjust system provides a fast and comfortable way to fine tune the fit. Anti-fog lens protection gives crystal clear vision preventing the need for mid swim demisting. Zone 3 Viper Speed Swim Grey Tinted Goggles - Lime/Black