[1] It is described by writer Clint Cherepa as "hiking the ups, jogging the flats, and running the downs", depending on the gradient, because of the weight carried.
[2] Participants carry a light pack with essential supplies, including a sleeping bag and tent, or similar form of shelter, if mountain huts or other accommodation is not available.
Established, well-traveled long distance trails are used because "with minimal extra food and clothing, getting stuck in the backcountry for an extended period of time can quickly become a dangerous proposition".
[8] Ultralight frameless packs are commercially available in weights ranging from eight to fourteen ounces (200–400 g)[9] and can consist of not much more than a sack with shoulder straps, a return to the simplicity of the rucksack.
[10] A good pack that is suitable for fastpacking needs to be particularly secure and comfortable when moving more quickly at a running or jogging pace.