This new addition to the Latch® eyewear collection has a stainless steel underwire for a faux semi-rimless look, & features a convenient latch at the hinge that clips to your shirt. Latch Key M & L have the classic notch bridge & smoothly rounded lenses that make this family so popular. All that style comes with proven Oakley performance including the razor-sharp clarity of XYZ Optics®. The latch hinge means that you can securely stow your sunglasses while on the go, keeping you moving through your day. These sunglasses are available in two sizes so you can enjoy an optimized fit. With adjustable silicone nose pads on the lightweight O Matter™ frame, you’ll know what true comfort feels like. Features Durability & all-day comfort of lightweight O-Matter™ frame material No-slip Unobtainium® Nosepads increase grip with perspiration Frame suitable for medium to large faces Plutonite® Lenses offer top UV Protection filtering 100% of all UVA, UVB, UVC & harmful blue light up to 400nm O Matter™ stress-resistant frame material is both lightweight & durable for all-day comfort & protection High Definition Optics® Lenses All Oakley lenses offer HDO® Technology with the following benefits: Clarity: Conventional lenses can magnify images. HDO® precision gives less distorted vision across the entire field of view. Refraction: With regular lenses, objects aren’t really where you see them. HDO® offers a truer visual image so your brain won’t have to work overtime. UV Protection: All Oakley lenses block 100% of UVA, UVB & UVC rays & harmful blue light up to 400 nm. PRIZM™ Lenses Prizm™ is a revolution in lens optics built on decades of color science research. Prizm™ lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast & enhance visibility.