World's lightest down jacketOur iconic Ultralight Down Jacket is possibly the worlds lightest full-featured down jacket. Filled with unrivalled 1000 fill power down, it is also one of the warmest in relation to its weight, designed for extremely cold conditions. A unique high-performance layering puffy for the discerning user.
Why we made it
- 1000 fill power down provides unrivalled insulation performance.
- Specialist jacket designed for extremely cold alpine conditions.
- Possibly the worlds lightest down jacket.
This is possibly the world’s lightest and warmest full-featured down jacket, designed to be worn under a shell, keeping you warm in extremely cold conditions.
The 1000 fill power platinum down we use is unique in its ability to insulate, it is only us and a handful of other companies in the world that can afford to use this amazing natural material. It can be compressed to a minimal package, and lofts immediately when unpacked. You can literary feel the down squeezing your arms when you put it on, and the sensation of warmth is immediate. The down is also treated for water resistance which makes it more durable, while keeping you warm and dry even in the wet.
The shell material is a Japanese ultra-lightweight DWR-treated 34 g/m2 ripstop nylon that is so thin, you can distinguish the actual down clusters through the fabric. It can be worn as an outer jacket, but although the ultralight fabric is durable for its weight, it can get torn by sharper objects.
1000 fill power goose down insulation that is fluorocarbon free, RDS-certified, bluesign-certified, allergen-free, 100% recyclable and completely sourcetrack verifiable.
Ultralight DWR-treated outer fabric that is wind and water resistant.
One chest pocket and two hand pockets insulated on the outside keeping hands and smart-phones protected and warm.
Ultra-packable, one hand pocket doubles as a stow-bag, forming a minimal package.
Athletic fit, meant to go under a shell jacket. If you plan to wear it as a stand-alone jacket choose one size larger than you normally do.
Full technical details
Insulation: 1000 fill power goose down. IDFL test result 1030 US / 980+ EU, 98/2% quality. RDS and bluesign®-certified.
Main fabric: Ultralight rip-stop – 100% nylon. 34g/sqm.
Main fabric denier: 10D * 20D. (This is a woven fabric in which the warp and weft have different denier numbers.)
Lining fabric: See ”main fabric”.
Down fill weight: Men’s S 82 g, M 88 g, L 95 g, XL 101 g, XXL 108 g. Women’s S 70 g, M 77 g, L 84 g, XL 92 g.
Waterproofness: PFC-free DWR-treated rip-stop (main fabric). Water-resistant goose down.
Breathability: Low. This is not a garment for high-pulse activities. The extremely lightweight main fabric is very tightly woven to not let out any down through the fibers. This leads to poor breathability but excellent insulation.
Garment weight: Men’s S 258 g, M 273 g, L 288 g, XL 304 g, XXL 320 g. Women’s S 218 g, M 228 g, L 240 g, XL 245 g.
Center back length: Men’s S 67.5 cm, M 69.5 cm, L 72 cm, XL 74.5 cm, XXL 77 cm. Women’s S 62.5 cm, M 65 cm, L 67.5 cm, XL 70 cm.
Hood/collar: High comfortable collar with chin guard triangle.
Pockets: One zipped chest pocket. Two zipped hand pockets whereof one doubles as stow bag.
Zippers: YKK zippers.
Ventilation: No ventilation.
Sleeves and cuffs: Pre-bent and extra long sleeves for extra freedom of movement. Elastic cuffs.
Bottom hem: Bottom hem adjustable with elastic drawstring. Extended back.
Snowgaiter: No snowgaiter.
RECCO: No RECCO reflector.
Extra features: Can be stowed into its own pocket (zipper works two ways in one of the hand pockets).
Note: Colors will differ slightly between different materials. The Stellar Shell Jacket will match the Stellar Shell Pant perfectly, but the Guide Shell Pant might not, because of differences in fabric texture and luminance. Contact customer service if you need advice.
Shipping & Delivery
We ship every working day, and always do our very best to deliver your order within the timeframes listed. All orders placed before 12:00 (Monday-Friday) will be shipped the same day. Orders placed during weekends or holidays will be shipped the following work day (excluding public holidays). As soon as your order has left our warehouse, you will receive an email with the tracking number.
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Wash & Care
Hand wash or cold water wash. Do not use fabric softner.
After wash, tumble dry the garment on low temperature until the garment is dry. Make sure to close all pockets and zippers. Place a couple of tennis balls in the dryer – this will make the down distributed evenly within the garment.