Our Vent System Garment collection are jackets designed for three season riding. Designed using our AirCurtain RamAir ventilation. Choose from a variety of Leather or textile jackets. When riding in warm to cool weather take advantage of the AirCurtain system by opening the zipper vents to achieve the desired effect. Too cold for the vents? Just zip the vents shut. Still too cold, some of the jackets are designed to accept our MK3 Streamliner a Wind resistant and reversible insulated universal liner.