Cumulus Down Sleeping Bags

 

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Cumulus Quantum

Our lightest sleeping bags.

Incredible warmth-to-weight ratios and tiny pack sizes

White, Diamond Grade,
Super Goose Down - 96:4

Fill Power - 870

Pertex Ripstop Quantum Shell

No loss of features despite
light weight -

Some competitors cut down on
construction features to save weight.
We do not !

... trapezoidal /boxwall construction
... full length zip
... insulated zip baffle
... insulated neck warmer

Cumulus Quantum 450Down Sleeping Bags - Cumulus Quantum 450  - Total Weight 800 gms; Temperature -10 C
Total Weight 800gms
Temperature -10C

 

 

Down Sleeping Bags - Cumulus Quantum 450 Stuff Sack,  15 x 15 x 30 cm; 20 gms

Compact pack size - (compare with 1 litre Sigg drinks bottle)

Cumulus Quantum 350
Down Sleeping Bags - Cumulus Quantum 350  - Total Weight 695 gms; Temperature -6C. THIS IS OUR MOST POPULAR SLEEPING BAG !! Total Weight 695gms
Temperature -6C

 

Down Sleeping Bags - Cumulus Quantum 350 Stuff Sack,  12 x 12 x 27 cm; 16 gms

Tiny
pack size

Cumulus Quantum 200
Down Sleeping Bags - Cumulus Quantum 200  - Total Weight 530 gms; Temperature 0 C. THIS IS OUR VERY LIGHTEST SLEEPING BAG !! Total Weight 530 gms
Temperature 0C

 

Down Sleeping Bags - Cumulus Quantum 200 Stuff Sack,  11 x 11 x 25 cm; 14 gms

Miniscule
pack size

Features

Construction : Quantum 350 and 450 - trapezoid; Quantum 200 - boxwall; (all bases are boxwall)

Differential fill and differential cut

Box foot - trapezium shape, comfortable for all feet positions

Cowl hood with elasticated, one hand operated drawcord

Insulated neck warmer - a simplified type of neck baffle

Full length, two-way YKK zip plus velcro fastener

Left and right handed zip models available, which can be zipped together if required

Anti-snag, full length zip baffle, down-filled to prevent cold spots

Inside pocket and hanging loops

Supplied with compact, fully-featured stuff sack and breathable, mesh storage bag

For full information about the key features click here

Technical Data

model
down quality
type, and fill power (1)
down weight
Fill Volume (2)
Total weight
overall length
max. person height

width shoulders/
foot

colours : outer/
inner
"comfort" temperature rating
stuff sack size
   
gms
cu in
gms
cm
cm
(feet)
cm
 
C
cm
gms
Cumulus Quantum 200
white goose
96:4
870
200
5800
530
217

185

(6'1")

75/50
black/silver
0

11 x 11 x 25cm

14 gms

Cumulus Quantum 350
white goose
96:4
870
350
10150
695
217

185

(6'1")

 

75/50
black/silver
-6

12 x 12 x 27cm

16 gms

Cumulus Quantum 450

white goose
96:4
870
450
13050
800
217

185

(6'1")

 

75/50
black/silver
-10

15 x 15 x 30cm

20 gms

Footnotes :

(1) the filling is WHITE, Polish, 'diamond grade' super goose down, whose Fill Power rating equals 870 cu in.

(2) the FILL VOLUME is a measure of the TOTAL insulating power of the sleeping bag

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