A cloth or leather bag held to the back with double shoulder straps. Originally designed for a functional purpose, the backpack has now become a fashion item as well.

1914 as a noun, 1916 as a verb, from back (n.) + pack (n.). Related: Backpacked; backpacking.

hike with a backpack; "Every summer they are backpacking in the Rockies" a bag carried by a strap on your back or shoulder A backpack (also called rucksack, knapsack, packsac [..]

A bag with straps that is worn on a person’s back. Often made of fabric or plastic. Also known as: knapsack, rucksack, sac a dos, Rucksack, Fagotto, Petate, Backpack

(n) a bag carried by a strap on your back or shoulder(v) hike with a backpack

A large pack worn on the back to carry camping supplies. To go on an overnight hike carrying your supplies in a backpack.

 a bag with shoulder straps that allow it to be carried on one’s back.

A carrying pack with two shoulder straps that can be comfortably carried on your back.

A knapsack, sometimes mounted on a light frame, but always supported by straps, worn on a person’s back for the purpose of carrying things, especially when hiking, or on a student's back when carryi [..]