The update of the best-selling Ergon backpack is now even more user-friendly. Perfected for enduro and all-mountain use. One for all – with the completely redesigned 4-way adjustable carrying system, the back length can be easily adjusted between sizes S to XL. Thanks to the load compression principle "Adaptive Carrier System" and the flexible aluminum frame, the backpack can be tailored even more precisely to the rider's anatomy. The hip belt can also be shortened as needed.

The pockets are divided into a main compartment with 4 inner pockets, a separate hydration bladder compartment, a front pocket with an organizer for tools and pumps, as well as a hip pocket. The extra compartment on the back of the BA3 provides space for back protection (BP100) and a hydration bladder (BH300). If the battery is carried with the BA3 E, there is still room in the protector compartment for the BP100 and the hydration bladder BH150.