Application to test Thermolite Bivvy Sack and Extremity Warmers
- Application to test Thermo-Lite Bivvy Sack and
February 28, 2003
Andrew Claus, Evergreen, Colorado, USA. Email at:
andrewclaus �at� yahoo �dot� com
I am a 45-year-old male. I am 5�9� (175 cm) tall, and
weigh 150 pounds (68 kg). I live and play in the
Colorado Rockies. I have section hiked the entire
Colorado Trail. I hiked Mt. Washington to Mt.
Katahdin on the Appalachian Trail in �02. I have been
backpacking, backcountry skiing, and bike touring for
the past twenty years. I have climbed all 54 of
Colorado�s �14ers� (14,000'/4,260m peaks). I get out
on day trips into the high country at least once a
week, year �round, and on backpacking trips several
times a year, including at least one in winter. I
also do a lot of outdoor travel as a wildland
I will have the opportunity to deploy and use the
Bivvy Sack and the Extremity Warmers on weekly
backcountry ski trips. My trips generally consist of
at least 10 miles (15km) round trip, with at least
2000� (700m) elevation gain. I generally go beyond
the end of the packed or established trail, often
above tree line when snow conditions are safe. So I
always carry some rudimentary survival gear�space
blanket, duct tape, snow shovel, extra hat, mitts, and
down insulation. On some extreme trips of 20 miles
(30km) or more, my partners and I will carry one
sleeping bag and stove, to keep at least one disabled
person warm. But it would be nice to have these
products along instead of my cobbled-together kit.
I will use the extremity warmers on winter lunch
breaks. I always notice a definite drop in my body
heat after lunch, with numbness encroaching on fingers
and toes. I wonder if this product will help.
I�ll also use the bivvy as a snow �seat cover�. I
usually sit on my pack, and then have to get up every
time I need something, like another smashed sandwich.
I�m also planning a five-day desert trip to Utah in
March, and may consider using this as a primary
shelter. I usually use a tarp. This will be with a
large group, so there will be secondary shelter
I also enjoy clear nights outside my shelter, but the
clear nights in the Colorado high country are seldom
above 20F (-10C), coincidentally the rating of my
sleeping bag. Another lightweight layer could make it
even more enjoyable.
Summer day trips usually consist of a summit attempt
in the high 13,000� (4,000m) range. I always carry
the same survival kit I do in winter, and will pack
these products, instead. To simulate summer
conditions, I will try the products in my yard at
7,200� (2,200m) in summer storms, including rain,
hail, grapple, and light snow.
I will evaluate the reflective properties and
insulation properties of these products. I am a
state-certified firefighter (Colorado Firefighter I),
and have experience with the heat transfer properties
of protective gear and clothing.
I will evaluate the reusability of the products, with
weekly packing, unpacking, and drying and repacking at
I will evaluate the ventilation features of the Bivvy
I have read the latest version of the survival guide,
2/15/03, and agree to comply with it.
Thank you for considering me for testing this
interesting piece of equipment.
MSR Trekker Tarp:
and Bivys/MSR Trekker Tarp/MSR Trekker Tarp - Andrew
Comfort Clogs Camp Shoes:
Review - Andrew Claus
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