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We're working out what we think - we'll add our view here!
Grüezi says:
From spring to autumn, camping and caravanning are at their best. The DownWool Subzero Comfort 2.0 is the perfect companion for these three seasons.
The problem with classic down: moisture & overheating
Down is the lightest and most insulating natural material—and extremely compressible. However, traditional down has its weaknesses: it loses its insulating properties in high humidity and can lead to overheating. This poses a real risk to comfort and rest, especially when traveling in changeable climates. This is precisely where DownWool® comes in—the intelligent evolution of down. The award-winning DownWool® sleeping bags are uniquely designed and offer solutions for precisely these weaknesses.
Heat output even at high humidity
Unlike conventional down, DownWool® retains its insulating properties even in high humidity—and even increases them by up to a third. DownWool® puffs up, trapping even more warmth. Even at 90% humidity, it remains pleasantly warm—ideal for both dry and cold, wet conditions.
Effective temperature compensation – no heat build-up, no freezing
The innovative filling consists of 70% RDS-certified animal welfare down and 30% wool from the Alps – a natural combination with high-tech functionality. DownWool® actively regulates temperature, constantly returning to skin temperature. This prevents overheating and avoids overcooling. At the same time, it absorbs moisture and wicks it away. This creates a pleasantly dry sleeping environment and a significantly wider comfortable temperature range – ideal for changeable weather.
Comfortable cut – more freedom of movement, less cold
For restful sleep, the body needs freedom of movement. The ergonomic cut of DownWool® sleeping bags offers just that: space for sleeping positions such as side sleeping or turning, even in a mummy position. The slightly more generous fit prevents cold spots because the filling is not compressed – for consistently pleasant warmth and maximum sleeping comfort.
Best sleep quality:
The natural climate-balancing insulation contributes to falling asleep faster, sleeping more deeply and overall longer, more restful sleep.
And best of all: light & compact.
In addition to their high functionality, DownWool® sleeping bags are amazingly light and packable – for more space in your backpack and maximum comfort on the go.
OEKO-TEX® STANDARD 100 certified:
Every part of the Grüezi bag® products has been tested for harmful substances and is therefore harmless to human health.
Our Verdict
We're working out what we think about Grüezi Bag's DownWool Subzero Comfort 2.0 | -1C Sleeping Bag, we'll add our comments here in due course.
- Reviewed by Ultralight Outdoor Gear
Features
- Pillow compartment: If you put a fleece jacket, for example, into the pillow compartment, the sleeping bag has a non-slip pillow.
- Adjustable hood with Face Baffle: The thermal bulge adapts perfectly to the shape of your head. When it's cold, only a small hole remains open, reducing heat loss from the face.
- 3D thermal collar closes automatically in the zipper area, so that no cold bridge is created in the zipper area.
- Drawstring pocket: To ensure that the drawstring on the warm collar does not get in the way, it is safely stored in a simple drawstring pocket.
- Inside & outside pocket for valuables and things you prefer to keep close to you.
- Two-way zipper: operable from both ends and from the inside/outside.
- Auto-Lock prevents accidental opening.
- Zipper with anti-snag zipper and lined robust webbing: This makes it even easier to operate the zipper without pinching the outer fabric.
- White zipper: easy to find in the dark.
- Underlined Zipper cover prevents cold bridges so that heat cannot escape.
- Chamber construction: H-chambers, V-shaped (on the top), pre-shaped foot area with several chambers
- Can be connected: The sleeping bag can be connected to another “DownWool Subzero Comfort” sleeping bag to form a double sleeping bag (for this, select the left and right zipper version so that they close together).
- Can be converted into a ceiling: Can be opened and used as a large blanket (160 cm wide).
- Delivery: Sleeping bag, compression pack, storage bag.
Specifications
Temperature Rating
Temperature range according to EN 23537-1
- Comfort: 4°C (39°F)
- Comfort Limit: -1°C (30°F)
- Extreme: -17°C (1°F)
Specs
- Weight: 1329g (excludes storage bags)
- Size: Blanket sleeping bag with 225 x 80 cm (suitable for a body height of 165 cm to approx. 190 cm with a normal stature.
- Filling weight: 628g
- Packed size: Ø 20 x 35 cm, compressed Ø 21 x 24 cm
- Pack volume: 11 litres, Compressed 2.5 litres
- Colour: Autumn Blue
Material & Construction
- Outer and inner fabric: Uncoated and therefore very comfortable, ultra-light, robust, wind and water-repellent, recycled 20 denier 380T nylon (100% polyamide).
- Filling: 628 g DownWool® made from 70% high-quality duck down (90/10 with fluffiness 700+ cuin) and 30% mechanically finished wool
- Material labeling: Shell 100% polyamide, filling 70% down/30% wool - contains non-textile parts of animal origin.
Help & advice:
- How to Wash and Care for Your Down Jacket and Sleeping Bag
- The Ultimate Guide to Lightweight Sleeping Bags
- Time-Saver Guide to Choosing a Sleeping Bag
- Our Gruezi Sleeping Bag Range Explained
- About Gruezi Bag and DownWool® Sleeping Bags
- Gruezi Bag Downwool 2.0 Sleeping Bags
- The EN13537 Standard
- All About Down