i J.ha BU5 i J.ha Bu 5 is the first ASSOS Campionissimo insulator jacket. Developed for clima Range 5
- early Winter conditions, it replaces the ASSOS Series element One RX jacket.
Features: J.ha Bu 5 is the ultimate, high performance early Winter insulator jacket. Features new stratagon Light & RXQ fabrics. More performance, less fabric volume. A future ASSOS icon. Created for riders who test their limits. Engineered to function as part of ALS (ASSOS Layering System), i J.ha Bu 5 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 & Clima Range of i J.ha Bu 5. Now you can fine tune your early Winter outfit to perfectly match your physiology, the intensity of your ride & your local weather conditions.