Cumulus Neo Quilt 600

CUMULUS NEO QUILT 600

The Neo Quilt 600 is an ultralight winter-capable quilt for experienced users who demand high thermal efficiency in really cold conditions. With a total weight of only 770 grams and 600 grams of Polish 900 fill power down, it delivers reliable warmth down to -15°C (limit) and a comfort temperature of -8°C. A thoughtful choice for cold tours where low pack weight is still crucial.

Instead of insulation on the underside, the Neo Quilt 600 uses the base layer as primary protection against ground chill, allowing all down loft to work maximally from above and from the sides. The result is more warmth per gram and an efficient, lightweight sleeping system that allows greater freedom of movement than a traditional sleeping bag. For use in these temperatures, a well-insulated sleeping pad and good head insulation are required.

The spacious, shark fin-shaped, closed footbox keeps feet warm throughout the night. The construction is based on 39 H-shaped down chambers filled with 600 grams of ethically produced 900 FP Polish goose down, providing stable loft and even heat distribution even in severe cold. Top and bottom are separately filled for optimal performance.

Outer and inner fabrics are made from ultra-lightweight Toray® Airtastic 19 g/m², 7 denier ripstop with DWR treatment in 100% nylon, combining light weight with good durability. The elastic neck adjustment is enhanced by an extra down-filled collar that effectively seals around the neck and shoulders when the temperature drops, and a snap button secures the fit.

A mattress attachment system with elastic straps and flat buckles, compatible with 50-60 cm wide sleeping pads, reduces heat leakage when changing sleeping positions. Fine-tuned through years of design and field testing at Cumulus®, the Neo Quilt 600 is designed for those who prioritize maximum warmth per gram, even when temperatures drop well below zero.

Specification

Down quality: 900 fill power Polish goose down
Down weight: 600 g
Total weight: 770 g
Weight without fill: 170 g
Comfort temperature: -8 °C
Limit temperature: -15 °C
Maximum user length: 185 cm
Length: 187 cm
Number of dunk chambers: 39
Width top/bottom: 83/52 cm
Outer fabric: Toray® Airtastic 19 g/m², 7 denier ripstop, DWR (100% nylon)
Inner fabric: Toray® Airtastic 19 g/m², 7 denier ripstop (100% nylon)
Construction: H-shaped down chambers
Shape: Open mummy shape
Footbox: Closed, shark-fin shaped
Neck adjustment: Elastic drawstring with extra down-filled collar and snap
Attachment to sleeping pad: Elastic straps with flat buckles (fits 50-60 cm wide pads)
Pack bag dimensions (height/diameter): 26/18 cm
Packing volume: 6 l
Accessories included: Packing bag and storage bag