This prescription-ready addition to the Latch eyewear collection has a stainless steel underwire for a faux semi-rimless look, and it comes with the handy kick-up latch hinge that clips to your shirt. Oakley Latch Key Sunglasses Features  New and improved latch hinge In-mold design texture for improved retention Durability and all-day comfort of lightweight O Matter™frame material Stainless steel underwire for a faux-semi-rimless aesthetic Silicone nose pads for comfort and adjustability Three-Point Fit: Comfort and performance that holds lenses in precise optical alignment Frame suitable for medium to large faces Available in two sizes (52, 55) for an optimized fit Prizm™ lenses enhance color, contrast and detail for an optimized experience HDPolarized: Minimizes glare via technology that produces a comprehensive, single-layered lens (optional) Plutonite™ lens material offers top UV Protection filtering 100% of all UVA, UVB up to 400nm and some of harmful blue light Glare reduction and tuned light transmission of Iridium™ lens coating Optimal precision and impact resistance that meet or exceed ANSI Z80.3 optical and impact standards HDO™ Optics for crystal clear vision and impact resistance Available with Oakley Authentic Prescription Lenses