Tailored for adventure riders looking to travel distances in comfort, technology from Nitroâ??s F350 range and the MX620 motocross helmet combine to make the MX 670. An MX multi-poly tech construction shell features a peak and visor, which uses Nitroâ??s scratch-proof coating. There are adjustable chinbar and brow vents, plus rear exhaust vents. The comfort lining is removable and washable with cheek pad inserts, while fastening is complete with a micrometric buckle.