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Cumulus x Gossamer Gear Aerial 330 Sleeping Bag

Cumulus x Gossamer Gear Aerial 330 Sleeping Bag

$566.00
$566.00
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Description

Meet the sleeping bag that does more with less: a limited-edition Cumulus Aerial 330. Weighing just 17 oz and rated for 30°F, it ditches the extra down on the bottom (your sleeping pad’s got that covered) and skips the zipper for max performance. Designed with 900 FP down and sleek Toray Airtastic® fabric, it’s a minimalist’s dream for outdoor adventures. 

Weight: 17 oz / 481.9 g
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Cumulus x Gossamer Gear Aerial 330 Sleeping Bag

  • Trusted Partners

    For over 35 years, Cumulus® has been manufacturing high-performance, ultralight gear in Poland using exceptional locally sourced down. The Polish down is the gold standard—thanks to decades of expert care, ideal climate conditions, and cutting-edge science. No synthetic fill has managed to out-fluff, out-warm, or outlast the real thing.

  • Ultralight Fabrics

    Known for being tough, ultra-light, and performance-ready, Toray Airtastic® takes the crown as the lightest downproof fabric on the planet at just 19g/m².

  • Traceable Down

    Cumulus sources its down exclusively from certified Polish producers, ensuring the down comes from free-range geese with access to water and ethical treatment that contributes to the quality of every feather.

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Product Details

Gear Notes

Aerial 330 false bottom sleeping bag features specialized construction, perfect for discerning adventurers who demand the peak of lightweight performance without compromising on comfort. Its exceptional ratio of weight to insulation level is not only achieved through the use of ultralight fabrics and 900 FP down fill but also through innovative design solutions.

While sleeping outdoors, the main insulation from below is primarily provided by the sleeping pad, as the insulation in the bottom part of the down sleeping bag compresses under the sleeper's body weight. Therefore, to reduce weight, the Aerial series features only a single layer of ultralight Toray Airtastic® fabric on the bottom part, eliminating the need for additional down fill. Additionally, the precisely crafted design of trapezoid chambers and the absence of a zipper firmly position the Aerial 330 sleeping bag among the top ultralight products. With a mere weight of 17 oz and a comfortable temperature level of 30 °F, it sets a new standard in the world of down sleeping bags. Its exceptional thermal performance at such a weight is unmatched by its peers.

Extreme adventure pursuits, long-distance cycling races, or multi-day hikes in technical terrain are scenarios in which the minimalist Aerial series of sleeping bags will prove most effective. It is also the go-to choice for those who carefully consider every gram of equipment carried on their own back, so they can embrace the freedom of lightweight adventures.

Features

  • Single air sealing layer of fabric in the bottom of the sleeping bag
  • Close-fitting mummy shape with no zipper
  • Differential cut design
  • Trapezoid chamber construction
  • 3D-shaped hood with two different drawcords for easy adjustment in the dark
  • Advanced footbox construction for better protection
  • Independently filled top and bottom sections
  • Simple mattress attachment system
  • Stuff sack and storage sack included

Specs

Weight

Total 17 oz / 481.9 g

Down Weight 11.6 oz / 328.8 g

Weight of Unfilled Sleeping Bag 5.4 oz / 153 g

Dimensions

Length 79.5" / 201.9 cm

Width Top/Bottom 30.3" / 20

Temperature

Limit 19.4 F

Comfort 30 F

Materials

  • Fill: 900 Fill Power ethically sourced Polish goose down
  • Shell and liner: Toray® Airtastic 0.56 oz/y², 7-denier ripstop, DWR finish (100% nylon)

FAQ

What is the maximum height for the sleeping bag?

6ft 1in

What are the dimensions of the stuff sack when the sleeping bag is packed?

9.8" height / 6.3" diameter

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