iJ.haBu5 is the first ASSOS Campionissimo insulator jacket. Developed for climaRange5 earlyWinter conditions, it replaces the ASSOS Series elementOne RX jacket. ALS Tips ASSOS Layering SystemEngineered to function as part of ALS ASSOS Layering System, iJ.haBu5 is designed to be worn as a second layer, over your ASSOS next to skin Interactive Insulator. With careful selection of your first layer ASSOS Interactive Insulator you can extend the activity and Clima Range of iJ.haBu5. Now you can fine tune your earlyWinter outfit to perfectly match your physiology, the intensity of your ride and your local weather conditions. iJ.haBu5 is the ultimate, high performance earlyWinter insulator jacket. Features new stratagonLight and RXQ fabrics. More performance, less fabric volume. A future ASSOS icon. Created for riders who test their limits.