Aqua Sphere Adults Eagle Swimming Goggles (Suitable for Prescription Lens) Silicone, , Optics Ready - Optional Eagle Optics diopter lens system available (UTAS159). Hypoallergenic Silicone skirt and strap for long lasting comfort. Durable Polycarbonate lens. 100% UVA and UVB protection. Anti-fog and Scratch-resistant lens coating.