Oakley HALF JACKET 2.0 XL: If you're trying to keep up with the competition, you need to keep up with changing light. We engineered Half Jacket 2.0 to let you swap out the lenses with ease. When they're mounted, you'll have impact protection that meets uncompromising standards. Optimized with Unobtanium earsocks to grip better when you sweat and a lightweight O Matter frame for comfort and durability.