This RIG Reflect lens fits the Sweet Protection Boondock II M goggle for riders who want a spare on hand for changing light. Clear AF inner lens technology cuts fogging well beyond a standard lens, and the RIG coating boosts contrast while keeping color distortion to a minimum. A 3D-sculpted lower edge kills glare bouncing off the snow, and the lens holds up to real impact thanks to its 2. 8mm cylindrical build.