Smith Reason OTG Goggle POS Only Chil Blocker mesh diffuses cold air Designed to balance everyday Chil Blocker mesh diffuses cold air as they breathe and gives optimal breathability to a windproof face covering while a zip interior pocket keeps small items from falling out when the oversized drop down lid is open for easy access Smith’s helmet and goggle integration is one of the best in the business and it gives riders the best user experience so you can mix and match any Smith goggle and helmet for the ultimate winter sport safety system Smith utilizes Two Layer DriWix Foam for its soft to the touch feel and for its moisture wicking properties to help battle any foggy climates that can be created inside of the goggles