Oakley SI Half Jacket 2.0 XL Sunglasses - Don't let the name fool you, Oakley's Half Jacket 2.0 sunglasses are the full package. If you need a pair of shades that are not only stylish, durable and lightweight, but also have the ability to swap out lenses easily and quickly, you need the Half Jacket 2.0. You shouldn't have to compromise with your eyewear, and with Half Jacket 2.0 you won't have to. Features Lightweight and Durable O Matter Frame No-Slip Unobtainium Nosepads and Earsocks Available with PRIZM Lenses Designed to Enhance Color, Contrast and Detail Interchangable Lens System 8.75 Base Lens Geometry with HDO