This update of the best-selling Ergon backpack is now even more user-friendly. Developed for Enduro and All-Mountain use. One for allwith the completely reworked 4-step adjustable carrying system, back length can easily be adjusted between sizes S and XL. Thanks to theAdaptive Carrier Systemload compression principle and the flexible aluminium profile the backpack can now be adapted even more accurately to the riders anatomy. The hip strap can be shortened as required. The bag contains a main compartment with 4 inner pockets, a separate bladder, a front pocket including a small compartment for tools and pumps, and a waist bag. The BA3s additional back compartment offers room for the back protector (BP100) and a bladder (BH300). Even when carrying the battery in the BA3 E, the protector compartment still has enough room to accommodate the BP100 and the BH150 bladder.