Since it was difficult to find a light backpack, large enough for my bicycle touring gear, I decided to make my own.
Most of the time this pack will be rolled and stored in the bicycle. The concept behind this frameless pack was to lay my two empty Ortlieb classic panniers flat against the back and stuff it tight with gear.
My Hyperlite 4400 Porter served as a template. After a busy weekend and 3 Ikea bags, the result was surprisingly usable. Carrying 10kg gear with this is bearable for up to 1h, I guess.
Let’s see how it will hold up.