Purchased these with my signal-vision distance prescription (see last photo). They are SO cute but I just didn’t love how they looked on me as sunglasses. From Warby Parker: With perfectly rounded, acetate-coiled lenses and slender metal temples, Duncan is the embodiment of the classic Windsor frame. Made from hand-polished cellulose acetate and stainless steel Acetate temple tips Akulon-coated screws for durability Silicone nose pads prevent slipping and pressure Prescription lenses are made from polycarbonate, the most impact-resistant material for sunglasses; non-prescription lenses are made from CR-39 for maximum clarity and color Includes scratch-resistant lenses that block 100% of UV rays