



Weight
Extremely lightweight down jacket (pullover) for those who really care about every gram – for quick treks, thru-hikes, and ultramarathons. The jacket is stripped of everything unnecessary. Thanks to its thoughtful design, ultralight fabric (18 g/m²), and the high-quality goose down with a fill power of 900 cuin, Cumulus has achieved an incredible weight of just 130 grams for this down jacket!
Why is the product exceptional?

On both the outer and inner sides, Cumulus used their lightest available Japanese fabric CAC™ weighing 18 g/m² (4×7-denier ripstop, 100% nylon). The fabric on the outer side is treated with a durable water-repellent DWR finish.
The jacket is filled with 45 grams of goose down with a fill power of 900 cuin, which is practically the best down available. The jacket features a sewn-through X-shaped chamber construction.
To ensure the lowest possible weight, the jacket has neither pockets nor a hood, and instead of a zipper, it features 4 plastic snaps. What you will definitely appreciate is the high collar around the neck and the extended back panel. The hem and sleeve ends are equipped with elastic cuffs.
In spring and summer, Plancklite can be your main insulating layer, and in winter, you can use it for layering under a warmer down jacket.
The down jacket is truly miniaturized when packed with a volume of only 0,5 liters (size 12x7 cm). The total weight in size M is 130 grams, which is approximately the weight of a t-shirt! A storage sack is also included in the package.

They save weight and provide better packability.

It saves weight and retains heat close to the body.

It gently hugs the neck and minimizes heat loss.

It prevents the lower edge from lifting above the waist during movement.

If you are unsure about which size or color to choose, or if you have any other questions, feel free to contact us via email or directly in the online chat. We are here for you.