Cumulus Quantum Models

Our lightest sleeping bags.

Incredible warmth-to-weight ratios and tiny pack sizes

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 450 Stuff Sack, 15x15x30cm; 20 gms

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

Cumulus Quantum 350 Stuff Sack, 12x12x27cm; 16 gms

Tiny
pack size

Cumulus Quantum 200 Stuff Sack, 11x11x25cm; 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	495	217	185 (6'1")	75/50	indigo/silver	0	11 x 11 x 25cm 14 gms
Cumulus Quantum 350	white goose 96:4 870	350	10150	665	217	185 (6'1")	75/50	indigo/silver	-6	12 x 12 x 27cm 16 gms
Cumulus Quantum 450	white goose 96:4 870	450	13050	770	217	185 (6'1")	75/50	indigo/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