Latch on with Oakley sunglasses: Latch Beta. Latch™ Beta is crafted with a handy kick-up latch feature that attaches to your shirt for easy storage, but with its bold lens shape and double-bridge architecture, Oakley doubts you’ll take it off. This lightweight yet durable O Matter™ design is a fresh look that expands one of their most popular frame families. Three-Point Fit for comfort and performance that holds lenses in precise optical alignment Silicone nosepad gives individualised adjustability and comfort Lightweight and durable O Matter™ frame material Plutonite™ lens material offers top UV Protection filtering 100% of all UVA, UVB up to 400nm and some of harmful blue light Optimal precision and impact resistance that meet or exceed ANSI Z80.3 optical and impact standards High Definition Optics HDO™ for crystal clear vision and impact resistance Oakley Prizm™ lens: designed to enhance colour, contrast and detail to make the most of any activity Grey Prizm™ Lens: light transmission 17%; for bright light conditions; Grey base colour One size fits all Frame Size: L (136mm frame width) Regular Lens Fit: a large lens front designed to fit those with an average-sized head High Bridge Fit: offers a more secure and comfortable fit if you have a high nose bridge and lower cheekbones. A good choice if your nose bridge sits above your pupils