Oakley Double Down eyeglasses combine a lightweight NanO-Matter frame with sport-ready features for reliable, no-slip wear during active days. Key attributes: Black ink | NanO-Matter | Lightweight construction | Durable frame | Sport performance | Adjustable wire-core temples | Unobtainium nosepads and earsocks for no‑slip retention | Includes replacement earsocks | Dimensions & fit: Lens width: 56 mm | Bridge: 16 mm | Lens height: 40 mm | Temple length: 143 mm | Regular fit | Low bridge fit | Composition & care: NanO-Matter frame | Unobtainium nosepads and earsocks | Wire-core temples (injected)