The Eagle Swim Goggles is a breakthrough in design offering optional interchangeable optic lenses that bring clarity back to your swim. Durable, polycarbonate dioptres are individually available in half-step increments from -1.5 to -6.0, ensuring you'll have perfectly customized visibility without having to purchase multiple pairs of goggles to match your vision needs. And an updated easy-adjust buckle makes fitting easier than ever! Assorted Frame Colors.