A backpack, also known as a knapsack, rucksack, pack, booksack, bookbag, or backsack, is a fabric sack carried on ones back and secured with two straps that go over the shoulders. It can have an external frame, internal frame, or be frameless. Backpacks are commonly used by hikers and students and are often preferred to handbags for carrying heavy loads or equipment due to their capacity to carry heavy weights for long periods of time. They are also used in recreational activities and as fashion accessories. Some backpacks are specifically designed to carry certain items, such as laptops and cameras. Backpacks are versatile and can be used for various purposes, from carrying school books to hiking gear.
In summary, a backpack is a versatile bag worn on the back with straps over the shoulders, commonly used for carrying heavy loads, equipment, or personal belongings, and is popular among hikers, students, and individuals engaging in recreational activities.
