Design & Technology: Swiftlock lens technology for premium lens that's easy to change Injected Panotech lens for premium view Patented frameless technology for optimal view Armored venting channels in top of lens to make clearing out snow easier Anti-fog coating to help ensure clarity Hydrophobic and oleophobic lens coatings resist water, dirt, dust, and oil Hard coating on lens to resist scratching for unobstructed view Silicone backing on strap to secure fit Triple layer face foam lined with hypoallergenic microfleece Compatible with most helmets 2 year warranty