Backpack in the context of "Canvas"

⭐ In the context of canvas fabric production, what distinguishes it from other heavy cotton fabrics like denim?

Ad spacer

⭐ Core Definition: Backpack

A backpack, also called knapsack, schoolbag, rucksack, pack, booksack, bookbag, haversack, packsack, or backsack, is in its simplest frameless form, a fabric sack carried on one's back and secured with two straps that go over the shoulders; but it can have an external or internal frame, and there are bodypacks.

Backpacks are commonly used by hikers and students, and are often preferred 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 with hands.

↓ Menu

>>>PUT SHARE BUTTONS HERE<<<

👉 Backpack in the context of Canvas

Canvas is an extremely durable plain-woven fabric used for making sails, tents, marquees, backpacks, shelters, as a support for oil painting and for other items for which sturdiness is required, as well as in such fashion objects as handbags, electronic device cases, and shoes. It is popularly used by artists as a painting surface, typically stretched across a wooden frame.

Although historically made from hemp, modern canvas is usually made of cotton, linen, or sometimes polyvinyl chloride (PVC). It differs from other heavy cotton fabrics, such as denim, in being plain weave rather than twill weave. Canvas comes in two basic types: plain and duck. The threads in duck canvas are more tightly woven. The term duck comes from the Dutch word for cloth, doek. In the United States, canvas is classified in two ways: by weight (ounces per square yard) and by a graded number system. The numbers run in reverse of the weight so a number 10 canvas is lighter than number 4.

↓ Explore More Topics
In this Dossier

Backpack in the context of Oakley, Inc.

Oakley, Inc. is an American company headquartered in Foothill Ranch, California, which is an autonomous subsidiary of Luxottica. The company designs, develops and manufactures sports performance equipment and lifestyle pieces including sunglasses, safety glasses, eyeglasses, sports visors, ski/snowboard goggles, watches, apparel, backpacks, shoes, optical frames, and other accessories. Most items are designed in house at their head office, but some countries hold exclusive designs relevant to their market. Oakley currently holds more than 600 patents for eyewear, materials, and performance gear.

↑ Return to Menu

Backpack in the context of Backpacking (travel)

Backpacking is a form of low-cost, independent travel, which often includes staying in inexpensive lodgings and carrying all necessary possessions in a backpack. One who engages in this form of travel is known as a backpacker. Once seen as a marginal form of travel undertaken only through necessity, it has become a mainstream form of tourism.

While backpacker tourism is generally a form of youth travel, primarily undertaken by young people during gap years, it is also undertaken by older people during holidays, a career break, or at retirement, or by digital nomads, as part of a minimalist lifestyle. As such, backpackers can be of any age, but are typically aged 18 to 30.

↑ Return to Menu

Backpack in the context of Emergency rations

Emergency rations are items of food and drink that a person stores and relies on in case of an emergency. Emergency food supplies can be purchased for camping trips or wilderness adventures. These supplies are meant to last for several days. Many people also purchase long shelf life emergency food in case of natural disasters or other emergency situations. The food can come in the form of a powder, freeze dried, smoked or salted. The rations are to help people survive until help arrives and are often carried while hill walking or mountaineering, because of the risk of being stranded by an accident. In some organised events, such as Ten Tors, it is obligatory to carry emergency rations.

Emergency rations are often carried by camping enthusiasts, especially back-pack campers, who are more likely to be far from food supplies. Emergency foodstuffs are usually high in caloric content, and sometimes also in nutritional content. Typical emergency foodstuffs are high-calorie foods such as candy bars, nutritional or protein bars, sports or energy bars, hard bread or biscuit (including food ration bars), dried meat (such as jerky or pemmican), and dried fruit. If water is available, rations with little water content are lighter to carry.

↑ Return to Menu

Backpack in the context of Pocket

A pocket is a small bag- or envelope-shaped compartment that is either sewn into or attached to clothing, designed for carrying small items. Pockets are also found on luggage, backpacks, and similar containers. Historically, the term could also refer to a separate pouch or small bag.

↑ Return to Menu

Backpack in the context of Hydration pack

A hydration pack or drink bag is a type of hydration system built as a backpack or waistpack containing a reservoir or "bladder" commonly made of rubber or flexible plastic. The reservoir contains a capped mouth for filling with liquid and a hose that allows the wearer to drink hands-free. Most hoses end with a "bite valve" that opens when the user bites down on it; the valve may be protected by a dust cover. Some hydration packs are insulated to keep water from freezing or becoming warm.

↑ Return to Menu