Aluminum frame (model: VAUDE Rupal)
The better the climbing backpack fits your back, the more comfortable and secure it feels when you’re backcountry. In order to ensure an even more precise fit, VAUDE climbing backpacks with body contact backs have aluminum frames that can be removed and individually adjusted.
The aluminum frame is already anatomically pre-shaped, but each person’s back is slightly different. A small adjustment can make a big difference in terms of wearing comfort and stability.
To adjust the aluminum frame, first loosen it and pull it out of the suspension system. After adjusting it, test the fit with the help of a second person. If the aluminum stays don’t fit your back snugly, you can gently bend them (over your knee or a rounded table edge). When reinserting the aluminum frame, make sure that it’s facing in the correct direction.