CONSTRUCTION - Mips - Multi-Directional Impact Protection System. I.M. Construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making I.M. helmets lighter and cooler than traditional helmets. FIT SYSTEM - In Form 2 Fit System is lighter and lower profile than the original, making it even easier to dial in a custom fit in seconds-even with gloves on. An improved dial design provides up to 6cm of adjustment plus enhanced stability. The updated, easy adjust Vertical Tuning feature accommodates different goggles and head shapes for a custom fit free of gaper gap. VENTILATION - Passive Aggressive Venting System - The discreet exterior vent design and interior channeling combine to create optimal airflow and temperature regulation. This auto-venting technology manages airflow and temperature while in-motion riding, hiking or standing static. SEAMLESS COMPATIBILITY WITH ALL GIRO GOGGLES - Giro products have been meticulously designed and tested to work together. We've fine-tuned the pairings of our helmets and goggles using exhaustive testing in our Dome R&D center and translating those findings into the perfect Seamless Compatibility fit. We recommend Giro Contact and Axis Goggles. FEATURES - Mips. TPU Injected brim. Removable goggle retainer. Removable earpads. Compatible with aftermarket audio systems.