COMPARATIVE SLEEPING BAGS REVIEW
by THE LIGHTWEIGHT BACKPACKER (Spring 2002)
 
 COMPARISON of BAGS RATED 20 to 35 DEGREES       Size: REGULAR LENGTH (see individual bag specs)
Bag Name
Temp. Rating * (degrees)
Mfr. Stated Bag Weight **
Tested Bag Weight **
Tested Packed Size
Down-fill Power
Shell Material
Measures
Down-fill Amount (ounces)
& Loft
Bag & Zipper Length
Retail Cost
Western Mtneering Ultralite

25F(spec)
20-25F(TLB)

1 lb, 12 oz
 1 lb, 11.584 oz 782g
7 x 7 in. x 14 in. long

750+
Extremelite 80/20 DWR .85 oz, 30 denier, high thread count ripstop nylon shoulder:59"
foot:38"
baffles:
 -continuous
 -spacing:5.25"
14 oz
loft:
 -foot:6"
 -hip:5"
 -shoulder:5.5"
-fits to 6'0"
-full length zip

$295
Marmot Hydrogen

30F(spec)
30F(TLB)
1 lb, 8.0 oz
681g
1 lb, 7.845 oz
676g
7 x 7 in. x 10 in. long

800
ParaLight 80/20 DWR, 1.2 oz, 30 denier, Originally for paragliding.  shoulder:62"
hip:58"
foot:40"
baffles:
 -continuous
 -spacing:5.50"
10 oz
loft:
 -foot:5"
 -hip:4"
 -shoulder:4.5"
-fits to 6'0"
-1/2 length zip

$249
Mtnsmith  Wisp

30F(spec)
35F(TLB)

1 lb, 5 oz
1 lb, 6.08 oz 
626g
7 x 7 in. x 10 in. long

750+
Dimension Polyant Airnet, 0.8 oz, 15 denier, Downproof DWR finish Wind-resistant shoulder:64"
hip:58"
foot:38"
baffles:
 -continuous
 -spacing:6"
11 oz
loft:
 -foot:6"
 -hip:3.5"
 -shoulder:4"

-fits to 6'0"
-1/2 length zip

$250
Nunatak Alpinist
 

20F(spec)
25-40F***(TLB)

1 lb, 7 oz
1 lb, 6.787 oz
646g
7 x 7 in. x 14 in. long

800
Pertex Microlight 1.3 oz rip-stop Nylon, DWR shoulder:61"
hip:50"
foot:34"
baffles:
 -continuous
 -spacing:9.25"
11.5 oz
loft:
 -foot:5.5"
 -hip:5"
 -shoulder:5.5"
-fits to 5'10"
-no zipper

$315
Big Agnes Horse Thief

35F(spec)
30F(TLB)

1 lb, 10 oz
1 lb, 11.83 oz
789g
6 x 6 in. x 12 in. long

775
30 denier Pertex nylon microfiber ripstop w/ fluorocarbon DWR  shoulder:67.5"
hip:64"
baffles:
 -spacing:6.0"
11 oz
(no down on bottom)
top loft:
 -foot:3.5"
 -hip:3"
 -shoulder:3.5"
-fits to 5'10"
-3/4 length zip
 

$199
Big Agnes Zirkel

20F(spec)
20-25F(TLB)

2lbs 2oz
2 lbs, 4.65 oz 
1039g
7 x 7 in. x 12 in. long

775
30 denier Pertex nylon microfiber ripstop w/ fluorocarbon DWR  shoulder:67.5"
hip:64"
baffles:
 -spacing:4.0"
14 oz
(no down on bottom)
top loft:
 -foot:3.5"
 -hip:3"
 -shoulder:3.5"
-fits to 5'10"
-3/4 length zip

$279
Exped Humming-
bird

 

30F(spec)
40F(TLB)

1 lb, 3 oz 550g
1 lb
5.41 oz 607g
5 x 8 in. x 12 in. long

700
Polyant Airnet - ripstop nylon with weight of only 28 g/m2 (approx .80oz per sq yd) shoulder:24"wide
foot:17wide"
baffles:
 -sides-blocked
 -spacing:6.0"

8.8 oz
loft:3"
-fits to 5'11"
-full length zip

$299
Moonstone
800 Lucid

 

20F(spec)
25F(TLB)
1 lb, 12oz
794g
1 lb, 12.89 oz 
819g
7 x 7 in. x 10 in. long

800+
Pertex® X-Ray 1.1 oz w/ DWR finish shoulder:59"
foot:40"
baffles:
 -continuous
 -spacing:
  alternate 4"/6"
14 oz
loft:
 -foot:5.5"
 -hip:4"
 -shoulder:4.5"
-fits to 5'10"
-full length zip (right zip only)

$260

NOTES:
* temp ratings consider what a bag will do without tent, bivy and extra clothes, and are meant to be an approximate guide rather than an exact measure that will be true to all folks.
** 28.3495 grams = 1 ounce
*** the Alpinist has enough down to perform well at 25 degrees but has virtually no down control and can easily develop cold spots and be chilly at 40 degrees.
 COMPARISON of BAGS RATED 15 to 20 DEGREES       Size: REGULAR LENGTH (see individual bag specs)
Bag Name
Temp. Rating * (degrees)
Mfr. Stated Bag Weight **
Tested Bag Weight **
Tested Packed Size
Down-fill Power
Shell Material
Measures
Down-fill Amount (ounces)
& Loft
Bag & Zipper Length
Retail Cost
Western Mtneering Versalite

20F(spec)
10-15F(TLB)

2 lbs, 4 oz
2 lbs, 3.34 oz 1002g
7 x 7 in. x 14 in. long

750+
Extremelite 80/20 DWR .85 oz, 30 denier, high thread count ripstop nylon shoulder:62"
foot:39"
baffles:
 -continuous
 -spacing:5.25"
20 oz
loft:
 -foot:7"
 -hip:6"
 -shoulder:7"
-fits to 6'0"
-full length zip

$355
Marmot Helium

15F(spec)
15F(TLB)
2 lbs
909g
2 lbs, 0.628 oz 
925g
7 x 7 in. x 14 in. long

800
ParaLight N-80/20 DWR, 1.2 oz, 30 denier, Originally for paragliding.  shoulder:62"
hip:58"
foot:40"
baffles:
 -continuous
 -spacing:5.50"
19 oz
loft:
 -foot:6"
 -hip:5.5"
 -shoulder:6"
-fits to 6'0"
-1/2 length zip

$299
Mtnsmith Vision

15F(spec)
15F(TLB)

1 lb, 15 oz
1 lb, 15.994 oz 
907g
7 x 7 in. x 14 in. long

750+

Dimension Polyant Airnet, 0.8 oz, 15 denier, Downproof DWR finish Wind-resistant shoulder:64"
hip:58"
foot:38"
baffles:
 -continuous
 -spacing:6"
21 oz
loft:
 -foot:6.5"
 -hip:4.5"
 -shoulder:6"

-fits to 6'0"
-3/4 length zip

$300


 
 

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