Whether it's race day or you're on the party lap train, clear vision can make or break the day. The race-inspired Smith Rhythm Mountain Bike Goggles set you up for maximum clarity and a wide field of view in any conditions. When it's wet and muddy, the roll-off compatible design lets you maintain full speed ahead. When the sun shines bright, ChromaPop(TM) makes sure every root, rut, and landing comes through loud and clear. Low-profile outriggers make sure they fit comfortably around a full-face helmet. A removable microscreen for additional dirt and debris protection as well as compatible roll-offs are sold separately. Features: ChromaPop(TM) anti-fog lenses enhance contrast and natural color to make the details pop Cylindrical Carbonic-x anti-fog lens for clarity and impact resistance Open ventilation paths let the air flow to eliminate fog Medium/Large fit Low nose bridge for wide field of view Ultra-wide silicone-backed strap stays put Low profile outriggers compatible with full-face MTB helmets Designed for ultimate integration with Smith helmets for maximum comfort, venting and storage convenience Three-layer DriWix face foam wicks moisture Roll-off compatible with Rhythm MTB Roll Off's Kit, sold separately Removable micro-screen for additional dirt and debris protection, sold separately