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Forclaz MT900 32°F Down Sleeping Bag
This sleeping bag is warm and light thanks to the loft (800 CUIN) of the down used, and is also very compressible. Mummy shape and adjustable hood with good coverage and a drawstring.
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San Francisco, 735 Market St. Options
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About this item:
- Comfort Temperature: 32°F/0°C I Temperature limit: 23°F/-5°C
- Size L Weight: 2.1 lbs (950 g) I Volume: 7.8 L I Stuff Bag Included
- RDS ethical down with a fill power of 800 CUIN
- Water repellent: Outer surface of the fabric is treated
- Mummy shape, anatomical hood. 1 long zip on the left with a double slider
Product Videos
Product Features
Optimal temperature
comfort temperature 32°F/0°C, limit temperature 23°F/-5°C. ISO 23537-1 standard.
Easy to transport
For size L. Weight: 950 g. Volume: 7.8 liters. Stuff Bag
Sleeping comfort
Mummy shape, anatomical hood. 1 long zip on the left with a double slider
Water repellent
Outer surface of the fabric is treated so that water runs off the surface
Compatibility
non-twinnable sleeping bag
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Product Customer Reviews
great, takes up a little space in storage so as not to crush the feathers too much
Very good. Resistance and heat ok even at low temperatures.
Ergonomic sleeping bag, takes up little space and keeps you warm!
tested over several nights, at 6/7°, no cold felt. not yet tested on a 0°... light bag and much cheaper than some competitors. too bad it is not sold with a compression bag and not a waterproof dry bag. the storage bag is a plus.
I've been using it for a few years for motorcycle and bicycle trips and for sleeping in the car on mountain trips. I've never been cold. I always use it with a sheet for my sleeping bag, also from Decathlon, and thanks to that I didn't have to wash it. The minimum temperature I used it at was -3 degrees and it was ok.
At around 0 degrees it was really warm. At -5 I already felt cold.
A light, warm sleeping bag. You could wish for better condensate management at this price. Local Latvian products are better!
Sleeping bag used on several trips. It worked well both in a tent, at a temperature of about 3 degrees, and in a bus. Light, very elastic down, thanks to which even a cold person like me slept comfortably. I recommend
Super warm, takes up little space, a bit difficult to pack back because it immediately expands but you can get used to it.
Ultra light, practical, warm Easy to handle
Nice full wanking
Very light and compact! Used for a trek of several days: at night it was between 2 and 5 degrees, and I was fine in terms of heat. Be careful though when it was very humid outside, I was less warm than the other nights.
Easy to store
Great sleeping bag, ideal for bivouacking in autumn or at altitude. Survived the GR20 without any problems. Easy to carry and comfortable.
We were really looking for the best possible price/performance ratio and I think this sleeping bag suits our purposes perfectly. It is much lighter and much smaller than our previous synthetic sleeping bags. We use it for mountain crossings and children at camps, and it's always cool. Not yet tested in temperatures around zero, hopefully it will happen this winter :)
Additional Product Information
Composition
Filling: 90.0% Grey Duck Down, 10.0% Grey Duck Feather ; Lining: 100.0% Polyamide ; Main fabric: 100.0% Polyamide ; Carry bag: 100.0% Polyester ; Bag cover: 100.0% Polyester ; Carry bag - Coating: 100.0% Polyurethane
What is the temperature rating?
All our sleeping bags display the temperature ratings, tested by an independent laboratory (AITEX), in accordance with the European standard NF ISO 23537 - 1:2022. The comfort temperature rating is the lower limit at which the user in relaxed posture is generally in thermal equilibrium and feels neither too cold nor too hot (for a standard woman in normal conditions of use). Choose your sleeping bag according to this criterion.
What is the temperature rating (lower limit at which you feel comfortable)?
The comfort limit temperature is the temperature limit at which a person curled up in the sleeping bag is in general thermal equilibrium, neither too cold nor too hot (determined for a man in normal conditions of use).We recommend using an insulation mattress to optimise your thermal comfort.
An important clarification concerning the iso 23537-1 standard
In the context of this standard, the measurement protocol of a sleeping bag’s thermal protection uses a mattress with thermal resistance equal to an R-value of 4.8.This means that by using a less insulating mattress, the thermal performance of your sleeping bag will be lower.We therefore recommend you use an insulating mattress to optimise your thermal comfort.
Some advice to consider before you get into your bag
Dress simply (1 layer of clothing is enough). Warm-up your extremities: hats, gloves, socks, hand/feet warmers, rubdowns, etc. A flask of hot water can be used as a hot water bottle (as long as there's no chance of it accidentally opening!) Contract your muscles (70% of the energy consumed is converted into heat) but don't make any movements that cause cold draughts.Use a bag liner to optimise warmth and avoid washing your sleeping bag too frequently.
Style
The mummy shape optimises thermal insulation (no loss of heat because there is not much air flow or draughts) and saves space, which means that your movements are restricted.Width at the shoulders 28.3 Inch (72 cm), height at the feet 10.2 Inch (26 cm) in size L.
Weight and dimensions
Size S: 750 g, user up to 63 Inch tall. Bag dimensions: Ø 15 x 34 cm. Volume 6.1 Liters. 380 g of down/feathers.Size M: 850 g, user from 63 Inch to 67 Inch tall. Bag dimensions: Ø 16 x 34 cm. Volume 6.9 Liters. 440 g of down/feathers.Size L: 950 g, user between 67 Inch and 73 Inch . Bag dimensions: Ø 17 x 34 cm. Volume 7.8 Liters. 500 g of down/feathers.Size XL: 1050 g, user from 73 Inch to 79 Inch. Bag dimensions: Ø 18 x 34 cm. Volume 8.7 Liters. 560 g of down/feathers/
Functions
Anatomical hood with good coverage and drawstring adjustment.A baffle along the zip prevents heat loss.Double-slider zips for optimal ventilation.Brick baffle construction to reduce thermal bridges.
The advantages of a duck down and feather filling
The filling power of down has 3 advantages for mountain sports: - Thermal insulation thanks to the air trapped in the down and feathers- Ultra low weight: down is lighter than synthetic wadding while offering the same degree of warmth. This saves even more weight in your backpack- Ultra-compressible.
How to measure the fill power of a down and feather wadding?
The fill power is a measure of the down fts thermal insulation capacity and its potential to Inchtrap Inch air. It is expressed in CUIN (cubic inches).So, down with a higher fill power (higher CUIN number) will occupy more space, trap more air and provide greater thermal insulation.For this sleeping bag with its 90% down / 10% feathers filling, the fill power is guaranteed to be 800 CUIN or more (international IDFB standard).
Storage instructions
To maintain its fill power, which is necessary for its insulation properties, store your sleeping bag by stuffing it in the mesh bag provided, feet first. Can be stored flat.
Origin
Imported
Law label information
Size S, click here to see the product label
Size M, click here to see the product label
Size L, click here to see the product label
Size XL, click here to see the product label
Forclaz MT900 32°F Down Sleeping Bag
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
| Weight Thresholds | Shipping within California | Shipping outside of California |
|---|---|---|
| > 9 lbs | $20.00 | $25.00 |
| > 30 lbs | $50.00 | $65.00 |
| > 100 lbs | $100.00 | $125.00 |
| > 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
