This frame can be worn on it's own, or as an OTG (Over-The-Glass) frame. Large enough to fit over most prescription glasses and styled to also wear without. The polycarbonate frame is light and easy to pack in it's included microfiber pouch.SpecificationsFits over prescription glassesAnti-fogAnti-scratch lensShatter-resistant polycarbonate lens.100% UV protectionPolycarbonate frameRx ReadyIncludes a microfiber pouchCE certified.