Whois & Analysis for zpacks.com

Ultralight backpacking is a style of backpacking that emphasizes carrying the lightest and simplest gear safely possible for a given trip.

Base pack weight (the weight of a backpack plus the gear inside & outside it, excluding consumables such as food, water, and fuel, which vary depending on the duration and style of trip) is reduced as much as safely possible, though reduction of the weight of consumables is also applied.

Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene.

Also known as high-modulus polyethylene, (HMPE), or high-performance polyethylene (HPPE), it has extremely long chains, with a molecular mass usually between 3.5 and 7.5 millionamu.

The longer chain serves to transfer load more effectively to the polymer backbone by strengthening intermolecular interactions.

This results in a very tough material, with the highest impact strength of any thermoplastic presently made.

A backpack — also called bookbag, kitbag, knapsack, rucksack, pack, or sackpack backsack — is, in its simplest form, a cloth sack carried on one's back and secured with two straps that go over the shoulders, but there can be variations to this basic design.

Lightweight types of backpacks are sometimes worn on only one shoulder strap.

A tarpaulin (US, UK), or tarp, is a large sheet of strong, flexible, water-resistant or waterproof material, often cloth such as canvas or polyester coated with urethane, or made of plastics such as polyethylene.

In some places such as Australia, and in military slang, a tarp may be known as a hootch.

Tarpaulins often have reinforced grommets at the corners and along the sides to form attachment points for rope, allowing them to be tied down or suspended.

A sleeping bag is an insulated covering for a person, essentially a lightweight quilt that can be closed with a zipper or similar means to form a tube, which functions as lightweight, portable bedding in situations where a person is sleeping outdoors (e.g. when camping, hiking, hill walking or climbing).

Its primary purpose is to provide warmth and thermal insulation through its synthetic or down insulation.

It also typically has a water-resistant or water-repellent cover that protects, to some extent, against wind chill and light precipitation, but a tent is usually used in addition to a sleeping bag, as it performs those functions better.

The bottom surface also provides some cushioning, but a sleeping pad or camp cot is usually used in addition for that purpose.

The bottom surface of a sleeping bag may be moderately water repellent, but a plastic tarp or groundsheet is often used to protect against moist ground.