Decathlon Forclaz
FORCLAZ SLEEPING BAG MT500 4844288
FORCLAZ SLEEPING BAG MT500 4844288
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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 do it without moving as this could create a draught.
Use a bag liner to optimise warmth and avoid washing your sleeping bag too frequently.
Style
A generous mummy shape that is wide at the shoulders and narrow at the feet to optimise thermal insulation (no heat loss) and make the product more compact, while maintaining some freedom of movement.
Width at the shoulders 70 cm, height at the feet 32 cm in size L. 62/28 in S, 66/30 in M, 74/34 in XL.
Weight and dimensions
Size M: 1100 g, user from 1.60m to 1.70m tall. Bag dim.: L 40 cm Ø 18 cm. Volume 10.2 L.
Functions
Ergonomic hood with drawcord.
A baffle along the zips prevents heat loss.
Double-slider zips for optimal ventilation.
The top of the sleeping bag can be opened with the two side zips.
Want to know more about the wadding?
We use 2 layers of overlapping wadding:
- One 60 gr/m2, 100% polyester
-and one 115 gr/m2, 100% polyester
It has the advantage of keeping its warmth even when wet.
Compatibility
Can be twinned with all the Forclaz MT500 sleeping bag models.
Can be twinned with the older models in the 2017 "Ultralight" and 2018 "Light" ranges.
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