The modern profile of the new Jackson helmet utilizes the new 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 MipsA(R) 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 new ultimate freeride helmet. SPECS:- CONSTRUCTION: IN-MOLD CONSTRUCTION VENTILATION: PASSIVE AGGRESSIVE VENTING SYSTEM - DISCREET EXTERIOR VENT DESIGN AND INTERIOR CHANNELING COMBINE TO CREATE OPTIMAL AIRFLOW AND TEMPERATURE REGULATION. AUTO-VENTING TECHNOLOGY MANAGES AIRFLOW AND TEMPERATURE WHILE IN-MOTION RIDING, HIKING OR STANDING STATIC. STACK VENT(TM) TECHNOLOGY FIT SYSTEM: IN FORM(TM) 2 FIT SYSTEM - LIGHTER AND LOWER-PROFILE THAN THE ORIGINAL, MAKING IT EVEN EASIER TO DIAL IN A CUSTOM FIT IN SECONDS, EVEN WITH GLOVES ON. ON-THE-FLY VERTICAL TUNING - ACCOMMODATES DIFFERENT GOGGLES AND HEAD SHAPES FOR A CUSTOM FIT FREE OF GAPER GAP. PRODUCT WEIGHT: 400G (SIZE MEDIUM) ELECTRONICS COMPATIBILITY: COMPATIBLE WITH AFTERMARKET GIRO AUDIO SYSTEMS BY OUTDOOR TECH CERTIFICATION: CE EN1077 HIGHLIGHTS: REMOVABLE GOGGLE RETAINER REMOVABLE EAR PADS SEAMLESS COMPATIBILITY WITH ALL GIRO GOGGLES MIPSA(R) EQUIPPED