SLEEPING BAG 900 II Ultralight

2,999.00 zł

Super lightweight ULTRALIGHT 900 down sleeping bag dedicated to Light&Fast activity fans. Advanced design because as many as 78 down chambers in DSV system. It weighs 1140g with 900g of FP 850 cuin 98/2 fill.

Temperature range of use:
T comf ♀ : -10°C.
T limit ♂: -17,5° C;
T ext : -38° C


Size Chart

User height (G3)[cm] 156-165 165-176 177-188 189-200
User chest circuit (G1)[cm] 65-80 81-96 97-112 113-128
Product available with different options


Warranty and service


Worldwide delivery


Return policy

The ULTRALIGHT 900 II sleeping bag features a minimalist design, anatomical mummy shape, advanced hood design, generous foot box and V-shaped down chambers.

ULTRALIGHT 900 is the warmest variant in the series was designed to minimize weight and provide thermal comfort in winter conditions, when temperatures drop to -10°C. It was sewn from super-lightweight Airtastic 7D fabric, made by Japanese company Toray. The fabric, despite its low weight, is very durable and downproof, plus very pleasant to the touch. The sleeping bag has been filled with 900 g of FP 850 down with a ratio of 98/2 (down/feather), which ensures warmth while sleeping during winter nights. Weight was important during the design, so an anatomical shape was used, tapering the sleeping bag where possible. A special "foot box" was modeled in the foot area, which creates space for our feet and improves thermal performance. At the level of the knees and hips, we provided a special allowance of material to improve ergonomics. There are special inserts in the hood to reduce its volume. This solution causes the hood to wrap around our head, pleasantly warming it. Double slats are provided at the zippers, one closer to the zipper prevents the material from cutting in. The other, on the other hand, provides insulation so that the sleeping bag does not get cold through the zipper. We can adjust the hood and thermal collar with an elastic band hidden in special internal tunnels, so that when pulled tight the elastic band bothers us less. The sleeping bag uses V-section space baffles (DSV), forcing the number of baffles to increase. Thanks to this solution, it gains 78 baffles, which reduce the migration of down and guarantee its even distribution. This solution does not significantly increase the weight, while it nullifies cold seams and increases the insulation value. Summing up all aspects, we can risk saying that this is probably the lightest sleeping bag in its category in the world.

- super lightweight, strong and durable Airtastic 20g/m2 fabric from Japanese company TORAY;
- Filling: highest quality Polish goose down FP 850 cuin 98/2, 900g (size L);
- mummy-shaped sleeping bag with advanced design;
- internal adjustable thermal collar;
- V-shaped chamber design (DSV);
- 78 down chambers ensure optimal distribution of down to guarantee effective insulation;
- ergonomic cut taking into account the allowance in the hips and knees;
- internal zippered pocket;
- YKK #3 zipper with two zippers, protected by a strip that prevents the zipper from cutting into the fabric;
- down insulation trim;
- collar and hood adjustment hidden in a special tunnel;
- compression sack with dimensions: diameter 21 cm, height 23, height after packing 22 cm (size L);
- storage bag

Weight: 1140g (size L, with compression bag)

Temperature range of use:
T comf ♀ : -10°C
T limit ♂: -17,5° C;
T ext : -38° C

Tested in accordance with EN 13537:2012

Internal dimensions:
Length: 199 cm (M); 208 cm (L); 220 cm (XL).
Width at shoulders: 69 cm (M); 78 cm (L); 85 cm(XL)

Technical parameters:

Toray Airtastic, with a weight of 20 g/m2
, is one of the lightest downproof fabrics available on the market. Despite its low weight, the fabric is resistant to tearing and abrasion. In addition, it is siliconized and coated with a DWR layer, so it gains water repellent properties and high windproofness. The material is characterized by high stretch, which makes it "move" along with the user. In addition, it is nice to the touch, which significantly improves comfort.

Filling: highest quality Polish down FP 850 98/2, 

All Malachowski brand sleeping bags are manufactured and filled with down in Poland, in the Beskid Mountains, in Dębowiec.


Data sheet


Specific References


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