For bootpacking up and skiing down, the Giro Jackson MIPS Helmet offers the protection you need and the aerodynamics to keep you up to speed. With a modern profile that creates a smooth top-shell to boost aerodynamics, the Jackson is designed to perform on fast downhill runs. Streamlined venting with Giro's Passive Aggressive Venting system keeps air flowing into the helmet while avoiding the aerodynamic drag of wide-open vents. And a slight brim helps shape goggles to the helmet for a complete system designed for comfort and performance.Fit and safety are central for Giro as well, and the Jackson MIPS keeps the weight down to reduce neck strain, and the Form 2 Fit system dials-in the comfort and can be adjusted with gloved hands. EPS foam and MIPS are there in case of tumbles or harder hits.