Native Eyewear Boomer Polarized Goggle Because fogging is not an option, all Native goggles have carefully positioned venting systems to promote airflow Optical-quality impact-resistant polarized lenses block 100% of the harmful UV light and elminate glare for sharp, clear vision with increased contast and depth perception Our new Glide-Lok true interchangeable lens system takes the grunt work out of swapping lenses, making it easier for you to adapt your vision on the go Compression-molded triple layer face foam contours perfectly to your face, while the outer layer of fleece wicks away moistue to keep you warm and dry Our special anti-fog treatment is permanently adhered to the inner lens and the toughest anti-scratch coating available has been applied to the outer lens to keep your vision clear for the long haul