napsack

The knapsack is a type of bag with straps that go over the shoulders, allowing it to be carried on the back. It is typically made from durable materials such as canvas, leather, or synthetic fabrics. Knapsacks are commonly used for carrying personal belongings, hiking gear, school supplies, or work equipment.

The design of a knapsack usually includes a main compartment for storage and may have additional pockets for organization. Adjustable shoulder straps are a key feature, allowing the wearer to customize the fit for comfort and weight distribution. Some knapsacks also feature a chest strap or a hip belt to further stabilize the load and reduce strain on the shoulders.

The term "knapsack" is often used interchangeably with "backpack," though historically, knapsacks might have referred to simpler, more utilitarian bags. In modern usage, the terms are largely synonymous. Knapsacks have a long history, evolving from simple bags carried by soldiers and travelers to the highly engineered and specialized designs available today for various activities like trekking, cycling, and photography. The versatility and practicality of the knapsack have made it a ubiquitous item in many aspects of daily life.