Description of Von Zipper Prowler Sunglasses - Urban Gorilla Onyx / Grey A white knuckle alliance born of thunder and a fist full of throttle, VZ and Brian Deegan have joined forces to take over the world with the Prowler. The only shade bad ass enough to bear the mark of the Metal Mulisha General. Features: 100% UV protection Impact resistant polycarbonate lens Nylon grilamid frame Stainless steel optical hinges