Tech-Air? ready, Large waist adjuster side panel and lower hem bungie cord, Dedicated relaxed fit and shape, with multiple volume adjusters on the arms, 4 Seasons liner, Chest opening and back opening vent panels and 3D multiple arm vents for ventilation, Detachable Drystar? jacket, fits over and under the jacket and detachable thermal jacket, Cargo pockets, Upgradeable chest and back Nucleon inserts, Asymmetric back and front lengths