What Are the Loops on My Backpack For?

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There are at least four different groups of loops on a typical backpack. You will find them on the lid, on the bottom, on the front, on the shoulder harness, and sometimes also on the sides.

You can use them to attach a lot of gear that normally does not go into the pack. This includes trekking poles, an ice axe, skis, a helmet, a tripod, an axe, a riffle, an extra day pack, and some other items.