The Jackal helmet provides you with unmatched comfort and security on your ride. The Advanced Turnfit System provides easy retention while a magnetic buckle closure makes it easy to handle the helmet even with gloves on. The eyewear friendly open face also allows enough room for a goggle while the integrated goggle grip stops the strap from slipping. A goggle can even be parked on the helmet with the adjustable visor in the up-most position. Brow vents and internal air channeling keep your head cool ,while an optional rear LED light keeps you visible as you ride back from the trails after an evening session. A removable, safety tested, action camera mount is included so you can easily record your ride or add a compatible light for hassle free night riding. Lazer Advanced Turnfit® system - ATS enables you to easily adjust the fit of your helmet by using the turn dial at the back of the helmet. ATS prevents any hotspots or pressure points by making the adjustment around the entire circumference of the head. This system is used on road helmets that prioritize aerodynamic performance and on MTB and E-bike helmets to provide a more secure fit.Adjustable Head Basket - The Adjustable Head Basket allows the back section of the retention system to be adjusted up or down, changing the verticle size of the helmet depending upon the riders preference.Inlet And Exhaust Ventilation - This ventilation is based on inlet vents that are coupled to specific exhaust vents by ventilation channels inside the helmet. This creates a specific airflow route for maximum cooling efficiency.Goggle Strap Grip - A grippy, high friction material is added to the helmet to hold your goggle strap in place. Never worry about a sliding goggle strap ever again.Adjustable Visor - Multi-position visor has four different positions in order to allow you to position it where you need it. Easy to adjust even while you are riding.Film Your Ddventures - Crash tested accessory mount to safely and easily attach an action camera or headlight to the helmet. Velcro strap mounting prevents the mount or accessory becoming a snag hazard.Eyewear-Friendly Recesses - Small recesses in the helmet shell above the ears create an open design and allows for the use of any eyewear without interference with the helmet.Bottom Shell - Polycarbonate bottomshell finishing looks great and helps protect the helmet foam from cosmetic damage.Ultralight Magnetic Buckle - The Ultralight Magnetic Buckle connects quickly and is easy to use with full finger gloves.The Multi-Directional Impact Protection System (MIPS) helps reduce the risk of rotational brain injury by isolating your head from the rotation of the helmet shell in the event of an impact.Size: Small 52-56 cm, Medium 55-59 cm, Large 58-61 cm