The modern profile of the Jackson helmet utilizes the Passive Aggressive Venting system; inspired by the aerodynamic airflow of high-end autos. The discreet yet powerful system effectively manages airflow and temperature while in-motion riding; hiking or standing static. The overall look is finished with a slight brim and subtle lines for Seamless Compatibility with Giro goggles. The Jackson Mips® technology; an ultra-lightweight construction and the dialed In Form 2 Fit system allows you to confidently focus on the terrain ahead. Leave no line untracked in the ultimate freeride helmet. Integrated Mips® Brain Protection System Hardshell with In-Mold Hardbody Lower Wrap with Liner In Form™ 2 Fit System Passive Aggressive Venting Seamless Helmet/Goggle Compatibility Stack Vent Fog-Free Technology Removable Ear Pads & Goggle Retainer Vertical Tuning Compatible with aftermarket Giro audio systems by Outdoor Tech CE EN1077 400 grams (size M)