Backpacks vary in shape, size, colour, contents and so on. It’s a personal choice what works best. For starting out, just use an old pack, no bigger than 30 L capacity. On the track, chat to other bushwalkers about what they like in a backpack and consider trialling a few different packs before buying.
A few features to watch out for:
– Durability: select materials (straps, buckles) that are sturdy and check that the seams are well stitched. Also, check how easy it will be to make repairs (some companies offer repairs under the initial warranty).
– Ventilation: modern backpacks sit slightly off the back (either with an external frame or with mesh fabric) generating airflow, allowing sweat to evaporate more easily, and keeping the user cool.
– A separate hydration compartment to keep the water bladder in position and limits damaged.