Oakley Hydra Sunglasses combine a lightweight BiO-Matter frame with a semi-rimless shield lens for sport-focused protection and stable wear during intense activity. Key attributes: Black | BiO-Matter | Lightweight and durable frame | Compatible with Prizm™ lenses to enhance color and contrast | Available with Iridium, polarized or photochromic lens options | Three-point fit for balanced stability | High bridge fit for secure positioning | Slip-resistant wear during activity | Semi-rimless shield lens | Razor blade–inspired trigger stem | B1B logo on temples | Dimensions & fit: Calibre: 37 | Wide fit | High bridge fit | Three-point fit for secure wear | Composition & care: BiO-Matter frame | Prizm™ lens options | Wipe clean with a microfiber cloth; avoid abrasive cleaners or solvents.