The Epoch Folding Goggle is a flexible frame with an adjustable strap backed by vented foam. It's super comfortable fitting protective eyewear used by motorcyclists, skydivers and everyone in between. Fit for any size head and fits great under helmets.; 100% UVA/UVB protection (UV400) Shatterproof polycarbonate lenses High-impact polycarbonate frames Adjustable strap Folds for easy storage Meets or exceeds ANSI Z87.1 standards