Internal Frame Tent

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Brookwood Internal Frame Tent
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Internal Frame Tent

Ultralight backpacking - china CRI-1001 Tester - CRS-TESTER manufacturer

History Ultralight backpacking was popularized by rock climber Ray Jardine, whose 1992 book PCT Hiker's Handbook, later retitled as Beyond Backpacking in 1999, laid the foundations for many techniques that ultralight backpackers use today.

Jardine claimed his first Pacific Crest Trail thru-hike was with a base pack weight of 25 pounds (11 kg), and by his third PCT thru-hike it was below 9 pounds (4.1 kg). Yet the concept of ultralight camping gear is certainly not new. The outdoors writer Horace Kephart, in his 1917 book Camping and Woodcraft, listed in detail several camping kits manufactured in England that weighed 67 pounds (2.73.2 kg), and included silk tent, rubber sleeping mat, down sleeping bag or quilt, alcohol stove and cooking equipment: it was Kephart's view that these kits were insufficiently durable. His own base pack weight for light trips was 18 pounds (8.2 kg), including the 2.75 pounds (1.25 kg) of his preferred Duluth-style backpack.[citation needed] Another early pioneer was Emma "Grandma" Gatewood, who thru-hiked the Appalachian Trail in 1955 with only a duffel bag containing an army blanket, a plastic sheet, and other very simple gear much lighter than the heavy equipment common among thru-hikers in those days.

Philosophy By carrying lighter and more multi-purpose equipment, ultralight backpackers are frequently able to cover longer distances per day with less wear and tear on the body. This is particularly useful when thru-hiking a long-distance trail. The first way to reduce weight is by leaving items that are unnecessary at home. This often includes camping luxuries such as camp chairs, coffee makers, electronic gadgets, multiple items of clothing, etc. This is the initial step taken by any backpacker seeking less weight on their back. The next method is reducing item weight. Modifying items to reduce superfluous weight, such as removing the handle from a toothbrush or cutting tags off of clothing is one example of reducing an item's weight. Replacing heavy items all together is another means by which to reduce an item's weight. Replacing items manufactured using heavy materials with items made from lighter ones will help as well. For instance, Ripstop nylon can make a much lighter pack than canvas material. The fabrics Silnylon, spinnaker sailcloths and spectra-woven Cuben Fiber (UHMWPE) are regularly used in ultralight applications for their low ratio of weight to surface area . Exchanging fully-featured items for minimalist (and therefore lighter) items will save weight as well. For instance an inflatable sleeping pad is more feature-rich and weighs more than a closed-cell foam pad, yet both serve the same intrinsic purpose. There are many options, so reducing item weight has innumerable choices. Field-expedient poncho shelter. The final method is to utilize multi-purpose gear - one piece of gear which serves the purpose of two, thereby theoretically cutting the weight of the item in half. For example, a lightweight rain poncho which is modified with tie-outs (or tied out with sheet bends) also serves as a tarp shelter. According to Jordan: "The poncho-tarp is probably the lightest possible combination of shelter and raingear..." Another example is an insulated sweater or jacket used in conjunction with a lightweight sleeping bag which boosts the efficiency of the lightweight sleeping bag as well as remaining a useful clothing item. By using an insulated sweater in conjunction with a lightweight sleeping bag a warmer rated sleeping bag may be made appropriate for the current weather. Warmer weather sleeping bags tend to be lighter and more compressible than colder weather sleeping bags. Base Pack The "Three Heavies" or "Big Three" The rain shelter, sleeping system, and backpack are considered to be the three major items carried by backpackers. Consequently, reducing the weight of these will reduce overall pack weight. Using the methods described above the weight of the big three will be reduced.

A bivouac (using a bivy sack) in winter at Benediktenwand, Germany The most common rain shelter in use is the tent, but these are relatively heavy due to a number of reasons. They are often designed from two layers of fabric (to address the internal condensation problem), often require the use of metal poles, stakes, and sometimes include a separate ground cloth to protect the tent bottom. Replacing a double-wall tent with a simple tarp and bivy combination will reduce not only weight but also volume carried in a backpack. Other methods to reduce shelter weight include single layer tarp tent hybrids, hammocks, poncho-tarps, or the use of a bivy sack (Alpine style) as the sole-shelter. Reduction in weight of the second of the big three, the sleeping system, is achieved through reduction of the quantity of fabric used in its manufacture or through use of lighterweight materials in its construction. The use of down as an insulation material which is lighter by volume than currently available synthetic fibers will decrease bag weight but alternately suffer from its susceptibility to loft loss caused by moisture. Reducing the overall weight of a sleeping bag by eliminating superfluous material will reduce its weight. An example of this is the use of a sleeping quilt or top bag. A sleeping quilt is a bottom-less insulated blanket which has no insulation on its bottom side, relying on the user's sleeping pad to guard against conductive heat loss into the ground. A top bag is more like a conventional sleeping bag in that it wraps around the user's entire body but the bottom fabric contains no insulation. The philosophy behind these two alternatives is that insulation crushed under a person's weight is devoid of air and therefore useless. Some modern down sleeping bags are through-baffled and under-filled such that the user can shift all the insulation to the top of their body thereby maximizing its potential to retain heat.

Ultralight hikers also tend to carry bags rated for warmer temperatures than traditional-weight backpackers - making up the difference on cold nights by wearing insulated clothing to bed such as a balaclava) or insulated jacket. Proper camping site selection that avoids colder hollows (low points where cold air tends to collect) or that makes use of natural wind barriers such as thick vegetation or cliffs makes up the difference in heat lost by lighter gear. With a lighter shelter and sleeping system, the backpack can consist of lighter material and a less bulky frame or no frame at all. The common ultralight alternative to an internal frame pack is a frameless pack made of ripstop nylon, silnylon, or Dyneema, with a carrying limit of 25 pounds (11 kg). An internal-frame pack can weigh upwards of 6 pounds (2.7 kg) with features such as hip belt stabilizers, lifter straps, sternum straps, and compression straps; ultralight frameless packs are commercially available in weights ranging from eight to fourteen ounces (200-400 g) and can consist of not much more than a sack with shoulder straps, a return to the simplicity of the rucksack. Jardine's book includes directions to make your own "ultralight pack". Grandma Gatewood used a lightweight duffel bag slung across her shoulder and stated that "Most people are pantywaists". Some backpackers make their own gear. Possible advantages include individually customizing the items, as well as potential cost savings. An added advantage is that if a homemade item were to break down, the hiker would be in a better position to repair it. Materials used to make commercially available gear are normally not as lightweight as they could be; one reason is in order to minimize returns of damaged gear. Homemade lightweight gear can last as long as needed if cared for properly. Referenced examples Jardine: Backpack: homemade "ultralight pack" (13.5 ounces (380 g)) Sleeping system: homemade polarguard 2-inch (5.1 cm) thick quilt (33 ounces (940 g)); stowbag (1.75 ounces (50 g)); trimmed 3/8-inch (9.5 mm) thick, 36-inch (91 cm) long, closed cell polyethylene pad (4.8 ounces (140 g)); space blanket ground sheet (1.25 ounces (35 g)) Rain shelter: homemade 9-foot (2.7 m) by 7-foot (2.1 m) silnylon tarp (12 ounces (340 g)); 8 aluminum tent stakes and stowbag (2.6 ounces (74 g)); guyline cord (0.5 ounces (14 g)) Total: 69.4 ounces (1.97 kg; 4.34 lb) Jordan: Backpack: commercial "ultralight pack" (3.7 ounces (100 g)) Sleeping system: commercial 2.25-inch (5.7 cm) loft down sleeping bag (15.2 ounces (430 g)); spinnaker cloth stuff sack (.5 ounces (14 g)); torso sized, 3/8-inch (9.5 mm) thick, sleeping pad (1.9 ounces (54 g)); Rain shelter: commercial poncho-tarp made of spinnaker cloth 5-foot (1.5 m) by 8-foot (2.4 m) (6.3 ounces (180 g)); silnylon bivy sack (6.2 ounces (180 g)); 6 titanium tent stakes (1.3 ounces (37 g)); 24 feet (7.3 m) UHMWP guyline (0.2 ounces (5.7 g)) Total: 35.3 ounces (1.00 kg; 2.21 lb) Other Gear The remaining gear (see ten essentials and survival kit for some of the other items) carried by an ultralight backpacker follows a similar philosophy of replacing traditional backpacking gear with lighter options. Below is a short list of replacements that some Ultralight hikers choose instead of traditional backpacking gear: Making a fire instead of carrying a stove. Light weight alcohol such as a beverage can stove or solid fuel stoves instead of heavier gas stoves and a single cook pot ("billycan") with a single spoon instead of a traditional mess kit (some ultralight hikers opt to not carry a stove and its associated paraphernalia at all, relying on no-cook meals for food, see also Raw foodism). Trail running or running shoes (Grandma Gatewood used Keds sneakers) instead of hiking boots and lightweight nylon socks instead of heavy wool socks. The minimal amount of extra clothing safely possible. At 40 F (4 C), an uncovered head accounts for half of lost body heat, making a balaclava particularly vital. An ultralight hiker's first-aid kit and repair kit are often stored in plastic or silnylon bags instead of the conventional (and heavier) packaging that a traditional backpacker might carry. The contents can also be optimized, for example Jordan proposes a 5-ounce (140 g) kit. A 1 ounce (28 g) mini pocket knife instead of a heavier Leatherman style multi-tool or Bowie knife or machete. Chemical disinfectant water treatment (iodine tablets, aquamira) instead of heavier water filters. Plastic Soft drink bottles instead of heavier nalgene or lexan bottles or Hydration packs. A 0.25-ounce (7.1 g) LED light instead of a heavy flashlight or headlamp. Consumables In addition to carrying equipment, hikers must also carry consumables such as water and food and in some cases fuel. Some ultralight backpackers save weight by resupplying these items more frequently. On long-distance trails with multiple access points, some ultralight hikers choose to place food caches or stop at stores to resupply consumables at frequent intervals, allowing just two or three days worth of food to be carried in place of a larger load. Water See also: Drinking water A 1.5-litre (1.6 US qt) bottle of water. The water itself weighs 1.5 kilograms (3.3 lb). 1 litre (1.1 US qt) of water weighs 1 kilogram (2.2 lb), thus it is a significant contributor to pack weight. Moderate activity in a moderate climate requires 2 litres (2.1 US qt) of drinking water per day , and in many regions hikers must carry their water from oasis to oasis. When traveling through an area with many springs and streams, some ultralight hikers can carry as little as 350 millilitres (12 US fl oz) of water or none at all, provided the hiker is confident on how far away the next reliable water source is and the expected weather conditions (or is smart enough to double back before becoming dehydrated). Water from many sources should be purified to prevent Waterborne diseases such as Giardiasis, Cryptosporidiosis and Dysentery. Some ultralight hikers reduce the weight of water purifying devices by carrying lighter disinfectants as opposed to heavier filters. Some ultralight hikers even forgo treatment in regions where water purification may not be essential or are particularly careful about choosing sources, see also Potability of backcountry water. Neither boiling, disinfectants or ordinary filters are effective against chemical pollution. Food See also: Nutrition Once the Big 3 (see above) and water are resolved, food becomes the biggest contributor to pack weight and an area where substantial gains over traditional backpacking can be gained. The Basal metabolic rate requirement of food calories (one food calorie is 1000 heat calories, thus sometimes labelled kcal) is approximately 1000 per day per 100 pounds of body weight. However exertion in the form of hiking consumes additional calories; for example the standard US Army field ration is 4500 calories per day for strenuous work. Thus depending upon type of food an average hiker carries, a hiker requires approximately 2 kilograms (4.4 lb) of food per day.[dubious discuss][citation needed] Ultralight techniques can substantially reduce this weight, Jardine suggests 2.5 pounds (1.1 kg) per day for thru-hiking, Jordan suggests 1.25 pounds (0.57 kg) per day (at 125 calories per ounce, 4.4 calories per gram) for a 3-season 3-day backpack. Many foods can be dried or dehydrated to reduce water weight. Dehydrated meals can be purchased or dehydrated at home. On the trail, rehydration can typically be performed by cooking in hot water. Some ultralight hikers reduce weight by not carrying a stove and rehydrating food in a container with water (although this method requires more time to rehydrate than the traditional cooking method). For example Ramen noodles, dehydrated refried beans (in powdered form), or dehydrated hummus can be put in a ziploc bag or lightweight microwave disposable plastic container with water to rehydrate. Gaba rice (or GBR, germinated brown rice) can be made with brown rice, body heat and water and eaten uncooked.[citation needed] Oats (groats or rolled, granola or muesli) and barley also become soft enough with soaking to eat uncooked. A common variety of trail mix made out of peanuts, raisins, and candy coated chocolate, around 4.8 kcal/gram. Weight in the form of food can also be reduced by choosing foods that have the highest ratio of calories per weight. Proteins and carbohydrates have approximately 4 food calories per gram whereas fat has 9 food calories per gram, thus carrying foods high in fat content can reduce weight, such as the following examples: Peanut Butter (5.89 kcal/gram) Nuts (Pecans are 6.87 kcal/gram, toasted coconut is 5.92 kcal/gram) Pemican (5.7 kcal/gram) Dried whole egg (5.92 kcal/gram) Clarified butter (anhydrous), which stores well unrefrigerated, is almost pure fat (8.76 kcal/gram), thus about 4,000 food calories per pound, however it is also a potent bear attractant. Alternatively, so-called "energy bars" on average contain more protein and carbohydrates than fat, similar to a fig newton (3.68 kcal/gram), lowering their calorie to weight ratio relative to other choices Food protection A captive bear tests a food canister In many areas, unprotected food has the potential of being eaten by wild animals. One common method (where the technique is legal) is to hang the food. In many areas, food is hung in trees to keep it away from ground animals, but this is ineffective where animals have become accustomed to humans. In the U.S.A.'s Yosemite National Park where there are numerous black bears, hanging food is ineffective, and an approved bear-resistant food storage container is required . The conflict with the ultralight hiker philosophy is that approved, bear-proof containers weigh several pounds empty. References ^ a b c d George Cole; Ryan Jordan; Alan Dixon (2006), Lightweight Backpacking and Camping, Bozeman, MT: Beartooth Mountain Press, ISBN 0974818828  ^ Ray Jardine (1992), The PCT Hiker's Handbook, LaPine, OR: AdventureLore Press, ISBN 0963235907  ^ a b c d e f g h i j k Ray Jardine (1999), Beyond Backpacking: Ray Jardines Guide to Lightweight Hiking, LaPine, OR: AventureLore Press, ISBN 0963235931  ^ Freeling, Elisa (Nov-Dec, 2002), "When Grandma Gatewood hiked the Appalachian Trail", Sierra,  ^ "Fabric Mojo - Descriptions of common lightweight fabric materials". Retrieved 2009-09-23.  ^ Jordan, Ryan Lightweight Backpacking and Camping, page 135 ^ "Where To Start". Retrieved 2009-09-23.  ^ a b c Colin Fletcher; Chip Rawlins (2002), The Complete Walker IV, New York: Knopf, ISBN 0375703233  ^ a b c d e f g Mountaineering: The Freedom of the Hills ^ "USDA food database: Snacks, trail mix". Retrieved 2009-09-23.  ^ "Online Merck Manual: Carbohydrates, Proteins, and Fats". Retrieved 2009-09-23.  ^ "USDA food database: Nuts, coconut meat, dried (desiccated), toasted". Retrieved 2009-09-23.  ^ "Methods of meat preservation without refrigeration". FAO. Retrieved 2009-09-23.  ^ "USDA food database: Butter oil, anhydrous". Retrieved 2009-09-23.  ^ , 2001,  ^ Food Storage in Yosemite National Park, 2008,  External links Joe's Ultralight Backpacking -- introductory page including an example gear list v  d  e Adventure travel Types Accessible tourism  Adventure recreation  Adventure travel  Agritourism  Backpacking (travel)  Backpacking (wilderness)  Bicycle touring  Camping  Disaster tourism  Ecotourism  Extreme tourism  Flashpacking  Ghetto tourism  Hang Gliding  Hiking  Hitch-hiking  Jungle tourism  Mountain biking  Mountaineering  Naked hiking  Paragliding  Rafting  River trekking  Safaris  Sustainable tourism  Ultralight backpacking  Urban exploration  Volunteer travel Miscellaneous Backpack  Bottled water  Campsite  Free Independent Traveler  Geocaching  Overlanding  Social photography  Zip-line Categories: Adventure travel | Backpacking | Camping | Hiking equipmentHidden categories: All articles with unsourced statements | Articles with unsourced statements from May 2008 | All accuracy disputes | Articles with disputed statements from February 2010 | Articles with unsourced statements from June 2008


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