Rudy Project Rydon Sunglasses combine an adjustable sport fit with high-performance lens options for running, cycling and outdoor training. Key attributes: Black | Black matte | Grilamid | 100% UVA/UVB protection | Photochromic lens option (ImpactX) | Polarized lens option (Polar 3FX) | Impact-resistant lenses | Interchangeable lenses | Prescription-ready (RX/Optical Dock) | Adjustable fit (nosepiece/temples) | Wrap-around sport silhouette | Wide field of vision | Lightweight construction | Dimensions & fit: Adjustable fit | Composition & care: Grilamid frame | ImpactX lens | Polar 3FX lens | Wipe lenses with a soft microfiber cloth; store in protective case.