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ARTICLES Technology Test Reports
Members Only Torso Simulator to test Heat Loss in Outdoor Gear – Radiation
by Jerry Adams
Measuring the affects of radiant heat loss to help you better prepare for the backcountry. Read More...
ARTICLES Technology Test Reports
Members Only How Safe Is Your Food? Investigating the effectiveness of odor-proof bags
by Ari Jutkowitz VMD, DACVECC
How do supposedly "odor proof" plastic bags for backpacking hold up to the keen nose of a Police K9? Read More...
ARTICLES Technology Test Reports
Members Only Thermal Feedback in Upright Canister Stoves
by Roger Caffin
Different upright canister stoves seem to work with differing levels of success in very cold weather, and one wonders why. Claims for pressure regulator stoves are especially problematic, with marketing spin being extreme in some cases. We examine just what is going on here, with an in-depth analysis of some aspects of both upright and remote canister stoves, to unravel some critical factors. Read More...
ARTICLES Technology Test Reports
Members Only Impact of Wind on Insulation Loft
by Tim Hawthorne
During a winter storm, strong winds can render your lightweight puffy useless. This article examines the effect that compression can have on various types of insulation, and presents recommendations for staying warm and alive. Read More...
ARTICLES Technology Test Reports
Members Only Midlayer Technology: Patagonia Capilene 4 v. Mountain Hardwear Desna Hoody
by David Chenault
This winter, increase the versatility of your other layers by adding a midlayer. An overview of two notable options, and discussion of current fabric tech. Read More...
ARTICLES Technology Test Reports
Members Only The Future of Baselayers
by David Chenault
A glimpse into the future and a mini-review of the Mammut All-Year long sleeve crew. Read More...
ARTICLES Technology Test Reports
Members Only Insulation Measurement
by Jerry Adams with editorial/scientific assistance from Roger Caffin
A method for measuring insulation in quilts, sleeping bags, and other gear. Read More...
ARTICLES Technology Test Reports
Members Only Field Testing Air Permeable Waterproof-Breathable Fabric Technologies Part 3: Discussion, Conclusions, and Performance of Individual Jackets
by Will Rietveld
In this final part of the series we assemble the information gleaned from our field testing into an informative discussion with down to earth conclusions. We also present field test data for each individual jacket, comment on its utility, and identify standouts. Read More...
ARTICLES Technology Test Reports
Members Only Field Testing Air Permeable Waterproof-Breathable Fabric Technologies – Part 2: Are There Detectable Differences Under Real World Backpacking Conditions?
by Will Rietveld
Manufacturers make lofty claims for the enhanced breathability of the new fabrics. I tested ten jackets under challenging and forgiving backpacking-type conditions, while recording temperature and humidity inside and outside the jackets, and reported my findings. Perhaps I didn’t experience “air and water vapor permeability so shocking you’ll swear it's magic,” but I did identify some standouts and some promising trends of interest to backpackers. Read More...
ARTICLES Technology Test Reports
SteriPEN vs H2O Amigo: A Long Distance Hiker’s Comparison
by Dan Feldman
Cutting-edge solar-powered UV water purification or simple gravity filter? I took both on the CDT to compare/contrast their performance, durability, and usage. Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or not?
Supplement 6: Primus Eta PackLite System

by Roger Caffin
We cover yet another Primus heat-exchanger stove system in this Review: the Primus Eta PackLite. This is basically modelled on the Eta Power system, but smaller and lighter. Read More...
ARTICLES Technology Test Reports
Members Only Heat Exchange Stove Shootout: Part 3
Heat Exchanger Stoves

by Roger Caffin
When do these stoves offer a weight reduction when compared to the baseline of Part 2 of the series? Read More...
ARTICLES Technology Test Reports
Members Only Heat Exchanger Stove Shootout: Part 2
Upright and Remote Canister Stoves

by Roger Caffin
Setting a baseline: we survey a good range of conventional canister stoves for performance, setting us up for the comparison in Part 3. Read More...
ARTICLES Technology Test Reports
Members Only Heat Exchanger Stove Shootout: Part 1
Introduction and Test Method

by Roger Caffin
The performance and efficiency of canister stoves, put to the test. When the dust (and CO2) settle, which one will be left standing? Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or not?
Supplement 5: Snow Peak GST-120 Lite Max

by Roger Caffin
The Snow Peak GST-100 GigaPower stove is widely regarded as the 'Gold Standard' for upright canister stoves. It weighs about 74 grams. Snow Peak has released a new stove in this series: the GST-120, or Lite Max, weighing only 56 grams, reviewed here. Does the Lite Max live up to the reputation of its precursor, the GST-100 (which is still available)? Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or not? Supplement 4: Jetboil Helios
by Roger Caffin
Jetboil releases its first remote canister stove. Does this work well enough to be a good winter stove? Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or not? Supplement 3: Brunton Vapor AF
by Roger Caffin
Measurements of carbon monoxide levels produced by the Brunton Vapor AF Stove. Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or not? Supplement 2: Primus Express and EtaExpress
by Roger Caffin
Measurements of carbon monoxide levels produced by the Primus Express stove and EtaExpress cooking system. Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or Not?
Part 5: Laboratory Measurements for Solid Fuels

by Roger Caffin
Several solid fuels are surveyed at different power levels to assess their carbon monoxide emissions. The results are not good. Read More...
ARTICLES Technology Test Reports
Members Only Condensation in Single-walled Shelters: Contributing Factors and Tips for Reduction
by Will Rietveld
Condensation in single-walled shelters is a fact of life, but there are many ways to greatly reduce its effects. Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or not? Part 4: Measurements on Alcohol Stoves
by Roger Caffin
Actual alcohol stoves are surveyed to see which ones are clean and which ones emit too much carbon monoxide. The results are not good. Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or Not?
Part 3: Laboratory Measurements for Canister Stoves

by Roger Caffin
Actual canister stoves are surveyed to see which ones are clean and which ones emit too much carbon monoxide. Read More...
ARTICLES Technology Test Reports
Members Only Exploding Gas Canisters: The Hazard of Overheating
by Roger Caffin
Most canister stoves come with extreme warnings to not use a windshield around them for fear of causing an explosion. Many experienced users ignore these warnings. What is the risk? Can a gas canister explode? Read More...
ARTICLES Technology Test Reports
Members Only Stoves, Tents and Carbon Monoxide - Deadly or Not?
Part 2: Testing the Theory

by Roger Caffin
Can you run your backpacking stove inside your tent, or do you risk death by Carbon Monoxide poisoning? Read More...
ARTICLES Technology Test Reports
Stoves, Tents and Carbon Monoxide - Deadly or not?
Part 1: Theory

by Roger Caffin
You've read the warnings and heard the horror stories about cooking in your tent. How dangerous is it really? Part 1 of this series describes: how CO is formed, a warning sign of production, and a simple change you can make to your stove setup to reduce CO. Read More...
ARTICLES Technology Test Reports
Comfort and Moisture Transport in Lightweight Wool and Synthetic Base Layers
by
An in-depth comparison of the properties of wool and synthetic fabric for base layers yielded some surprising results. Read More...
ARTICLES Technology Test Reports
Members Only Comparative Fuel Efficiency and Carry Weight for Six Lightweight Backpacking Cooking Systems: Part II
Calculating Fuel Usage, Carry Weight Analysis, and Cost/Efficiency Considerations

by Will Rietveld
White Gas, remote canister, top mount canister, integrated canister, alcohol, and fuel tab stove systems - when factoring in fuel carried, trip length, and conditions - which system is the lightest? Read More...
ARTICLES Technology Test Reports
Comparative Fuel Efficiency and Carry Weight for Six Lightweight Backpacking Cooking Systems: Part I
Assembling Comparable Cooking Systems and Test Data

by Will Rietveld
White Gas, remote canister, top mount canister, integrated canister, alcohol, and fuel tab stove systems - when factoring in fuel carried, trip length, and conditions - which system is the lightest? Read More...
ARTICLES Technology Test Reports
Members Only Lightweight Dry Sacks: Comparison Testing Results
by Carol Crooker
The lightest dry sacks from Granite Gear, Outdoor Research, Sea to Summit, Pacific Outdoor Equipment and Cascade Designs (SealLine) subjected to five tough tests - with lots of failures. Read More...
ARTICLES Technology Test Reports
Members Only Water Weight Gain and Drying Characteristics of Lightweight Hiking Shoes after Submersion
by Carol Crooker
How fast do popular lightweight hiking shoes dry after a thorough soaking? Read More...
ARTICLES Technology Test Reports
Members Only Drying Characteristics of Select Lightweight Down and Synthetic Insulated Tops
by Don Wilson
Loft recovery and water weight gain measurements of select down and synthetic tops after a thorough soaking. Read More...
ARTICLES Technology Test Reports
Members Only Performance Comparison Testing of Lightweight Canister Stoves Fall 2005: Controlled Data Evaluating Key Variables of Temperature, Wind, and Windscreen Use for Four More Canister Stoves
by Will Rietveld
Backpacking Light stove testing follows strict scientific protocols to ensure testing conditions are controlled and repeatable, and that our results accurately reflect stove performance you can expect in the field. Read More...
ARTICLES Technology Test Reports
Members Only Performance Comparison Testing of Lightweight Canister Stoves: Controlled Data Evaluating Key Variables of Temperature, Wind, and Windscreen Use
by Will Rietveld
Canister stove testing under real world conditions you expect in the field, not on the kitchen counter. Read More...
ARTICLES Technology Test Reports
Members Only Night Time Condensation on Tarp and Tent Fabrics
by Mariah Walton
Preliminary field research on the nature of condensation and dew formation on different shelter fabrics. Read More...
ARTICLES Technology Test Reports
Frameless Backpacks: Engineering Analysis of the Load Carrying Performance of Selected Lightweight Packs
by Ryan Jordan, Ph.D.
Read More...