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Initial
Report:
Sierra Designs Electra
Sleeping Bag
by Gail Staisil, Marquette,
Michigan
December 1, 2005
Tester
Information
Personal
Data:
Name: Gail
StaisilAge:
53 Gender: Female Height: 5' 9"
(1.75 m) Weight: 132 lbs (60 kg)
Shoulder Girth: 41 in (104
cm)
Hip Girth: 37 in (94 cm)
Backpacking
Background:
For the last 16 years, backpacking has become
a passion. I am a four-season backpacker and an off-trail navigator.
Although I do take yearly trips to the American West or Southwest, the
majority of my trips are in Michigan and Canada. My pack weight varies
considerably, but my base weight is below 20 lbs (9.1 kg). I am
primarily a tarp camper, who averages over 50 nights a year backpacking
in a huge variety of weather conditions, including relentless rain, wet snow
and sub zero temps.
Sierra Designs Electra
Sleeping Bag-- Technical Description
Product
Information:
Manufacturer: Sierra
Designs
Phone: 1.800.635.0461
Model/Size: Women's Electra
Long
Model Year: 2005
Manufacturer's Weight: 4 lb 3 oz
(1.90 kg)
Actual Weight: 4 lb 5 oz (1.96 kg)
Color: Royal Blue (Exterior) Charcoal
Gray(Interior)
Insulation: Powerfill 800-Fill Goose Down
Fill Weight: 39 oz (1106 g)
Manufacturer's Inside Length: 78 in (198 cm)
Tester's Measurement for Inside Length: 78 in (198
cm)
Zipper Side: Right
Manufacturer's Stuff Sack Size: 10 in (25 cm) X
20 in (51 cm)
Tester's Measurement for Stuff Sack Size: 10 in
(25 cm) X 20 in (51 cm)
Tester's Measurement for Stuff Sack Weight: 5.9
oz (167 g)
Shell Material: 40D Nylon
Lining Material: 40D Polyester
Manufacturer's Shoulder Girth: 61 in (155 cm)
Tester's Measurement for Shoulder Girth: 60 in
(152 cm)
Manufacturer's Hip Girth: 60 in (152 cm)
Tester's Measurement for Hip Girth: 59.5 in (151
cm)
Manufacturer's Footbox Girth: 43 in ( 109 cm)
Tester's Measurement for Footbox Girth: 42.5 in
(108 cm)
MSRP: $419.95 US
Design/Features
(Tester's Comments):
The Sierra Designs
Electra is a women's-specific sleeping bag that is
temperature rated at -20F (-29C). The dimensions of the bag and the
placement of extra insulation were configured with women's body
types in mind. According to their website, the mummy-shape bag
is made out of a combination of materials that are designed to enhance
the performance of the sleeping bag. The Electra belongs to Sierra
Designs' Adventure DriZone Series. The manufacturer claims that all of
the bags in that series are constructed with a highly breathable waterproof
shell material called DriZone. The Electra also features Power-Fill 800
Goose Down Insulation, Baffle Construction, Draft Collar, Dual Draft Tubes,
Ergonomic Hood, Glow-In-The-Dark Zippers and Pad Locks.
Sierra Designs Electra
Sleeping Bag--Initial Impressions
The Sierra Designs Electra Sleeping Bag
was delivered appropriately enough in the middle of a snow squall. I quickly
opened the package to find the Electra encased in a bright yellow cotton
storage-bag. I was surprised that the storage bag was much smaller in length
and width than I had anticipated (29.5 in/75 cm) X 20 in/51
cm). This is the bag that should be used to protect the loft of the bag
while in storage. A blue-color compression-style stuff-sack is also
included for trail usage. The sleeping bag was flattened
and cold from its journey so I waited a half-hour to check it out. It
quickly regained its loft. The Electra looked warm and cozy so
I crawled in it.
I ordered the Women's Electra in a
size Long so I wondered how it would compare to some of my
other Regular-Size bags which are unisex. I thought I would be on the
border of needing a Size-Long bag but it appears that I would of been in
serious trouble if I had gone with the Women's Electra Regular-Size. In
fact, the Women's Long is almost identical to my
other Regular-Size Unisex Sleeping-Bags. I should point out
that I am a rather tall woman (5' 9"/1.75 m) and the Electra
Long has an inside length of 78 in (198 cm). This is 6 in (15
cm) longer than the Regular-Size Electra and 2 in (5 cm) shorter
than the comparable Men's Regular-Size Echo Bag at 80 in (203 cm). When
my feet are extended, they go almost all the way to the bottom of the Electra
Long.
The Electra is sort of a royal blue
color on the exterior while the interior is a charcoal gray color trimmed with
a narrow strip of light gray fabric under the
toggle-closure drawstring for the hood. The only adornments on the
sleeping bag are two Light-Gray Sierra Designs logos on the front of
the sleeping bag near the torso area and the name of the bag and temperature
rating is embroidered on the side of the footbox.
The sleeping bag appears to be finished
neatly and there aren't any down feathers pushing through the fabric, the
right-side zipper is also neatly finished and is enhanced on each
side by a draft tube. Each side of the zipper has a separate draft
tube which measures about 4 in (10 cm) wide the entire length of the
zipper. Between the sides of the zipper and the draft tubes is a
corded-insert of stiff fabric that is supposed to prevent the zipper
from snagging. Both the dual-draft tubes and corded-insert are novel
features for me. It will be interesting to find out the value of
such arrangements. The top end of the two-way zipper has a 2 in (5
cm) long Glow-In-The-Dark Zipper Tab.
The down bag is configured in a baffled
construction. The baffles on the front of the bag run in a diagonal fashion
and are spaced approximately 7.5 in (19 cm) apart. The baffles on the
bottom of the bag run horizontally and are about 5.5 in (14 cm) apart.
The women-specific bag is supposed to have additional down placed in strategic
areas such as in the torso and the footbox. I measured the goose-down loft and
found the following: Torso-area loft measures 7 in (18 cm), middle-of-bag
loft measures 6 in (15 cm) and footbox-area loft
measures 8 in (20 cm). It will be interesting to see if I have to wear my
insulated booties in the sleeping bag with the additional insulation in
the footbox. The bottom of the bag also has two Pad-Locks incorporated into
the side seams. These horizontal straps with adjustment sliders are to be used
to secure a sleeping pad. This is also a new feature for me to evaluate.
The Electra has an ergonomic hood
and a baffled draft collar. The later can be secured with a Velcro tab to
prevent cold air from getting inside the bag.
So far, the Electra seems to be smaller
both length and width-wise than any bag that I have owned. I am
a bit concerned as I am a cold sleeper who usually wears several layers of
clothing in my sleeping bag. Perhaps with the additional insulation that the
Electra provides, that may not be necessary. I also realize that I have been
spoiled all summer and fall with unusually warm temperatures so that I am not
used to being constricted in my movement by a zipped-up bag. That will change
in a hurry, I am going on a backpacking trip in the next few days with lows
expected to be in the single digits Fahrenheit.
One hangtag was included with
the product that explained the Warranty, plus the features of the Sierra
Designs Women's DriZone Series of Sleeping Bags. Care instructions were
on the bag itself, a care label is sewn into the inside of the bag near
the top of the zipper.
Sierra Designs Electra Sleeping
Bag--Test Plan
During the next four months my scheduled backpacking
trips in Michigan include a four-day trip to the Pigeon River State Forest in
December, a multi-day winter sledge-trip in January, and a eight-day
sledge-trip in March to the Pictured Rocks National Lakeshore. I will
also be taking a nine-day sledge-trip in February to Ontario, Canada. In
addition, a couple of spur-of-the-moment trips are very
likely.
All testing locations will be at low elevation or
altitude 600 ft (183 m) to 2000 ft (610 m), with cold conditions and mid range
humidity (50-90 percent). All of these trips will be taken to hilly boreal or
deciduous forest. Most of the trips are of the bushwhack variety, so in
addition to the above, I will also be traveling across flat frozen lakes
during the January, February and March trips.
Below freezing temperatures are normal. The Michigan
trips' temperatures will range from the average low in January of 3F
(-16C) to the average high of 26F (-3C) in December. These are
only averages, I have been on several trips where the temperatures dipped to a
low of -20F (-29C) in January and a foot or more of snow has fallen in a short
amount of time. Due to the unusually hot summer in Michigan, the Great Lakes
warmed to a higher degree than normal. Predictions indicate that there will
most likely be heavy amounts of lake-effect snow this winter as the cold air
moves over the warm lakes producing tons of snow - not that we don't get
plenty as it is. Average precipitation for the Michigan trips is
approximately 13 in (33 cm) during this time period, however average snowfall
for the winter totals at least 185 in (470 cm) in some of the areas that I
will be camping in Michigan.
My February trip to Ontario, Canada could produce lows
of -40F (-40C) with the average low
being -2F (-19C). In addition, snowfall for the month of February averages 21
in (54 cm) with an average snow depth of 26 in (67 cm). Again, this is an
average, there is frequently over 6 ft (183 m) of snow on the ground during my
past Canadian trips.
I will address the following concerns and
more:
Materials:
Will the DriZone Shell ward off any potential water hazards
including wet snow, rain, humidity or condensation - that is, will the shell
keep the 800-Fill down dry from the outside? If the ends of the Electra
touch a tent wall, will the moisture seep thought the shell? Is the DriZone
Shell down-proof or will I be greeted with loose feathers daily? Will the
40D Polyester Lining deter body moisture and body dirt from filtering into
the down fill compromising its effectiveness? Is the lining material neatly
finished so that it doesn't catch on any clothing? Will the lining material
be tightly woven so that the down stays where it belongs? Will the 800-Fill
Goose Down retain its loft after being compressed in a stuff
sack?
Workmanship:
Is the sleeping bag finished neatly
so that there aren't any loose strings or puckered seams? Does the zipper
run smoothly and not catch on excess fabric? Does the zipper lock in place?
Are the baffles in the sleeping bag constructed so that the down-fill
is spaced properly?
Performance/Comfort:
Will the baffled construction eliminate cold spots? I
often find that to be a problem with down bags as the down-fill moves around
and some areas become real thin. Will I need to use a bivy over the sleeping
bag to protect it from moisture/condensation if I am sleeping in a snow cave
or under a tarp? I will be testing the sleeping bag in different types
of shelters - inside of a tent, under a tarp and possibly a snow cave if
conditions allow it. If I don't use a bivy or a tent, will the wind permeate
through the DriZone Shell of the Electra and make me cold? Will the
double-draft tubes on this bag be effective to prevent heat loss from inside
the bag? Will it keep cold outside air from entering the
bag?
Warmth/Temperature
Rating:
Is the -20F (-29C) temperature rating of
the bag fairly accurate? I know this is subjective, but how does it compare
to other products? Is the warmth-to-weight ratio desirable? The women's long
version weighs 4 lb 3 oz (1.90 kg) and has 39 oz (1106 g) of loft - is this
enough protection to keep me warm at -20F (-29C) without additional
clothing? Will I need to use one or two thick pads underneath the Electra to
be comfortable at its rated temperature? Will the temperature rating of the
bag be only good for the first night of a trip or will the rating fall
sharply with each additional consecutive day in the field? I realize that
this is an issue with any bag used in that manner, but will the Electra
perform better than most and not lose its warmth
quickly?
Durability:
Will the DriZone Shell hold up to ordinary wear and tear? Will
the zipper remain problem free? Will the loft retain its height during the
test period or will it lose some of its loft quality? Will the lining of the
sleeping bag hold up to the wear and tear of constant use? Will the Pad
Locks on the outside of the bag tear out of the seam with the repeated
stress of holding the pad in place?
Fit/Design:
Will there be enough room in the sleeping bag to wear
additional insulated clothing and not feel like I am in a
straight-jacket? Will the women's specific bag have noticeable differences
that I will enjoy? I never had a women's sleeping bag before, so I will
evaluate the differences of strategically-placed loft and the differences in
dimensions. Will the Ergonomic Hood move with me so that I don't end up with
my face in the back of the hood when I turn from side to
side?
Care:
Will the DriZone Shell be easy to
care for? Will dirt or snow wipe or slide right off the shell? Will the
Electra be hard to wash if needed? I don't expect this to be a problem
during the four month test period but it will be a factor after an extended
period. Will special down-care soaps be needed to clean the sleeping
bag?
Special
Features:
Will I find the Pad Locks useful? This is a
new feature to me, will it be hard to move around with the sleeping pad
locked in place? How thick of a pad will the Pad Locks hold? Will it hold
more than one pad? Will the Glow-In-The-Dark Zipper Pulls be useful if I
have to get up during the long winter nights? Will the chest pocket be big
enough to stow my small headlamp?
Tester
Remarks
I will gladly address all these issues and any
additional pertinent issues, as I continue to test the Sierra Designs Electra
Sleeping Bag.
Thanks to Sierra Designs and BGT for
this interesting opportunity.
Gail
Staisil
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