Backpacks & Duffelbags

A backpack (also called rucksack, knapsack, packsack, pack, Haversack, Bergen, kitbag and bookbag) is, in its simplest form, a cloth sack carried on one's back and secured with two straps that go over the shoulders, but there can be exceptions. There are many ways to carry backpacks. One way is to carry it in one hand (like a briefcase).