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. Some models offer Prizm™ lenses, a radical development in lens optics. This technology provides unsurpassed light transmission resulting in colors that maximize contrast and visibility.