- 20 × 35 cm
- -2 °C
- 1.120 g
- 17 × 32 cm
- 3 °C
- 860 g
- 13 × 26 cm
- 7 °C
- 560 g
Why a down sleeping bag?
Gram for gram, down gives more warmth than synthetic fill and compresses smaller. Our Pyro range is filled with white duck down 90/10 – 90 % down, 10 % feathers – with a fill power of 750+ cuin. The higher this figure, the more loft and warmth each gram of fill delivers.
Down sleeping bags compared
| Model | Fill | Comfort | Limit | Weight M / L | Compressed size |
|---|---|---|---|---|---|
| Pyro 250 | Down | 7 °C | 2 °C | 480 / 540 g | 13 x 19 cm |
| Pyro 500 | Down | 3 °C | -3 °C | 780 / 840 g | 17 x 25 cm |
| Pyro 750 | Down | -2 °C | -8 °C | 1,020 / 1,080 g | 20 x 28 cm |
Comfort and limit temperatures from Wechsel product data 2026. Weight without stuff sack in size M (body height up to 175 cm) / L (up to 195 cm). Compressed size in size M (diameter x length).
Which Pyro suits you?
Summer and bikepacking
The Pyro 250 weighs 480 g and compresses to 13 x 19 cm. Comfort 7 °C – for summer nights and light loads.
Spring to autumn
The Pyro 500 has a 3 °C comfort rating and weighs 780 g. Our 3-season all-rounder.
Winter
The Pyro 750 has a -2 °C comfort and -8 °C limit rating at 1,020 g. For frosty nights, ideally on an insulated sleeping mat.
Built for the trail
Every Pyro has a finely adjustable hood and a generous zip baffle that keeps cold out along the zip. The AntiSnag slider stops fabric catching in the zip. On the trail, pack your Pyro into the compression sack supplied.
Down and moisture
Wet down loses loft and therefore warmth. Air your sleeping bag in the morning before packing it and let it dry fully after your trip. On trips with lots of rain or condensation in the tent, a synthetic sleeping bag is the safer choice.
Storage and care
Store your down sleeping bag loosely in a large storage sack, never compressed for long periods. How to wash and dry it is explained under Care & Cleaning. If something is damaged, our repair service can help.
Down sleeping bag FAQs
What does 750+ cuin mean?
Cuin (cubic inches) measures fill power: how much volume one ounce of down takes up. 750+ cuin means the down lofts well and insulates efficiently for its weight.
How warm is a down sleeping bag?
That depends on the model. Our Pyro bags cover comfort ratings from 7 °C to -2 °C. For frost, choose the Pyro 750.
Which down sleeping bag is best for bikepacking?
The Pyro 250: 480 g and 13 x 19 cm compressed. More under Bikepacking sleeping bags.
Can I wash a down sleeping bag?
Yes, with a down wash and thorough drying. See Care & Cleaning.