Bag Canvas January 03, 2019

A backpack -- also called bookbag, kitbag, knapsack, rucksack, rucksac, pack, sackpack or backsack -- is, in its simplest form, a fabric bag carried on the back and fastened with two straps that go on the shoulders, but there can be variations to this basic layout. Lightweight kinds of backpacks are occasionally worn on just 1 shoulder strap.

Backpacks are commonly employed by hikers and students and are frequently favored to handbags for carrying heavy loads or carrying any sort of equipment, because of the limited capacity to carry heavy weights for long periods of time at the palms.

Large backpacks, used to carry loads over 10 kilograms (22 pound ), as well as smaller sports backpacks (e.g. running, biking, hiking, and hydration), usually offload the largest part (up to approximately 90 percent ) of their weight on padded hip belts, leaving the shoulder straps mainly because of stabilizing the load. This improves the potential to carry heavy loads, as the shoulders tend to be stronger in relation to your shoulders, and also increases balance and agility since the load rides closer to the wearer's own center of mass.