Be ready for any light condition instantly. XMAX + XTRA LENS features a multilayer lens with the instant lens changing system. It also offers maximum field of vision and more comfort around your eyes with Salomons unique fit system.Instant changing lens + free bonus lens: Intuitive, touch-free lens changing system. Maximum field of vision: Minimalist frame and pure goggles design guarantee maximum field of vision. Precise fit: Fits the sensitive areas of the face for improved comfort.FIELD OF VISION: Max vision.FIT: Custom Frame. Medium/Large Fit. Tri-layer foam Active Dry.FRAME: Bi-material Hard/Soft Frame.FOG CONTROL: Airflow System. LENS: Spherical Lens. Injected Technology. +1 Extra Lens. 100% UV CUT.COATING DEFINITIONS: Multilayer. Tri-Tech. Anti-scratch.LENS INTERCHANGEABILITY: Twin Lock System.HELMET INTEGRATION: Helmet Compatible. Outrigger.STRAP: Silicon. Wide size strap.EXTRA LENS: +1 EXTRA LENS.