Due to the shipping bulk created by its frame and hipbelt, the Maxus 80L backpack may be delivered unassembled.

Assembly Instructions for the Maxus 80L Backpack

1- Insert the Aluminum Bars: Slide the bars into the channels on each side at the base of the pack — rubber cap last. The large curve of the bar should follow the curve of your upper back. Stop before the top channel. See included video for guidance.

2- Attach Shoulder Straps: Slide the aluminum bars into the fabric sleeves on the back of the shoulder straps. If you feel resistance, gently wiggle and “massage” the strap around the bar to help it slide in — this is normal on a new pack. The exact position depends on your torso length, but as a starting point, leave about 5 cm (2″) of aluminum bar visible below each strap.

3- Secure Bar Tips into Top Channel: Insert the tips of the aluminum bars into the top webbing channels near the load lifters. It may feel tight at first — this is normal, as the webbing is flat and stiff when the pack is new. It will gradually adapt to the bar’s shape. Pinch the webbing open with your fingers to help guide the bar in. Once inserted, only the end caps at the bottom should remain visible.

4- Connect Load Lifters & Strap Webbing: Thread the load lifters and shoulder strap webbing through the matching ladderlock buckles on the pack.

5- Attach Hipbelt Hooks: Clip the aluminum hooks at the bottom of the pack into the hipbelt loops.

6- Connect and Tighten Hipbelt-to-Shoulder Hooks: At the top sides of the hipbelt, locate the small 1.5 cm webbing straps with aluminum hooks (Bonfus logo). Attach them to the loops on the back of the shoulder straps. Hold the shoulder straps down and pull these straps firmly to create a tight, stable connection between hipbelt and shoulder straps. This prevents the hipbelt from shifting and keeps the straps from sliding upward under load.

7- Connect Side Stabilizers: Clip the side stabilizer straps of the hipbelt to the ladderlocks on the pack. These reduce lateral movement and pull the weight closer to your lumbar area for better stability and comfort.