Double lens. Supravision (100% anti-fogging). 100% UVA, UVB, UVC protection. Climazone ventilation system. Double adjustment buckle on strap, thick hypo-allergenic foam. Articulated side attachments fit all helmets. Case supplied. Quick-fit attachment system. Come with storage bag. These goggles have up to 18 mirror layers. Gives high protection against glare as well as additional reduced indirect light. Made in Germany.