The HJC C91 is a modular motorcycle helmet designed for medium-oval head shapes, though it's noted that it tends to size on the small side. If you're between sizes, it's recommended to order a size up. The helmet features HJC's SuperCool lining, which is moisture-wicking and anti-bacterial, and includes speaker pockets as well as glasses grooves that are reported to work well for those who wear glasses. Its chin bar can be opened using a single button and raises to about a 45-degree angle for visibility, although it's not dual-homologated for open-face riding. The helmet is available in a range of solid colors and a couple of graphic options, and it's equipped for HJC's own Sena-developed bluetooth kits (the 10B or 20B) for those looking to integrate communication systems.FEATURES Advanced Polycarbonate Composite Shell with Adjustable Chinbar: Lightweight, superior fit and comfort using advanced CAD technology Ventilation: ACS" Advanced Channeling System: Full front to back airflow flushes heat and humidity up and out of the helmet Anti-Fog Lens Prepared Shield: Pinlock Ready HJ-17 Shield provides 95% UV protection. Anti-Fog Pinlock insert lens is sold separately Integrated Sunshield: Dark Smoke Anti-Scratch coated sunshield deploys quickly and easily with the user-friendly sliding system RapidFire Shield Replacement System: Simple and Secure shield rachet system provides ultra-quick, tool-less shield replacement Super Cool Interior: Liner and Cheek Pads are removable and washable and have enhanced moisture-wicking properties. Cheek Pads are interchangeable throughout all Shell Sizes. Glasses Groove: Accommodates riders that wear eyeglasses and sunglasses Bluetooth Communication Ready: Helmet contains built in speaker pockets and is specifically designed for use with the HJC Smart line-up (Communicators sold separately) Helmet Standard: DOT Approximate Weight: 1720 grams (Size Large) *Note: Lower and lock before you leave. Never ride with the chin bar in the raised position. Please use care when opening and closing the chin bar as it may scratch the helmet. Damage caused by this is not subject to manufacturer's warranty.
