What is comfort temperature?
All our sleeping bags feature comfort temperatures tested by an independent laboratory (AITEX) in accordance with European standard ISO 23537-1:2022. The comfort temperature is the lower limit of comfort at which a person in a relaxed posture is in overall thermal equilibrium and neither cold nor hot (determined for a standard woman and under normal conditions of use).
Choose your sleeping bag according to it.
And what is the comfort limit temperature?
The comfort limit temperature is the temperature at which a person curled up in a sleeping bag is in overall thermal equilibrium and neither cold nor hot (determined for a man and under normal conditions of use).
We recommend using an insulating mattress to optimize your thermal comfort.
An important clarification concerning ISO 23537-1
For the purposes of this standard, the protocol for measuring the thermal performance of a sleeping bag uses a mattress whose thermal resistance corresponds to an R-value of 4.8.
This means that if you use a less insulating mattress, the thermal performance of your sleeping bag will be lower.
We therefore advise you to use an insulating mattress to optimize your thermal comfort.
A few tips before you slip into your sleeping bag
Dress simply (1 layer of clothing is enough).
Warm up your extremities: hats, gloves, socks, warmers, frictions... A flask of hot water can be used as a hot-water bottle (if there's no risk of accidentally opening it!).).
Contract your muscles (70% of the energy consumed is transformed into heat), but without making any movements that generate cold draughts.
Use a sleeping bag sheet to optimize warmth and avoid over-washing your sleeping bag.
Shape
Generous sarcophagus shape, wide at shoulders, narrow at feet, optimizing thermal insulation (no heat loss) and compactness, while maintaining relative freedom of movement.
Shoulder width 72 cm, height at feet 34 cm in size L. 64/30 in S, 68/32 in M, 76/36 in XL.
Weights and dimensions
Size S: 1450 g, user up to 1m59. Bag dimensions: L 42 cm Ø 19.5 cm. Volume 12.5 liters.
Size M: 1550 g, user between 1m60 and 1m69. Cover size: L 42 cm Ø 20.5 cm. Volume 13.9 liters.
Size L: 1670 g, user between 1m70 and 1m84. Dim. case: L 42 cm Ø 21.5 cm. Volume 15.2 liters.
Size XL: 1790 g, user between 1m85 and 2m. Dim. cover: L 42 cm Ø 22.5 cm. Volume 16.7 L.
Volume and dimensions may vary according to the compression applied to the product.
Features
Ergonomic hood with drawcord.
Double collar for protection from the cold.
Anti-cold flap along the zips to prevent heat loss.
Double slider zips for optimum ventilation.
The top of the sleeping bag can be opened thanks to the 2 side zips.
Would you like to know more about the wadding used?
We use 2 superimposed layers of wadding:
- one of 115 gr/m2, 100% polyester,
- and one of 150 gr/m2, 100% polyester.
Wadding is composed of siliconized helical fibers, making it highly compressible and resilient.
Despite its thinness, it offers a high level of insulation thanks to the air trapped inside, while retaining a low weight.
It has the advantage of retaining its warmth even when wet.
Compatibility
Can be paired with all MT500 sleeping bag models Forclaz.
Can be paired with previous models in the "Ultralight" 2017 and "Light" 2018 ranges.
How to repair your sleeping bag?
On a trek, a tear in your sleeping bag can happen! The good news is that it can be repaired to prevent the tear from getting bigger or the synthetic fibers from escaping.
We recommend the use of self-adhesive repair patches (ref: 8584596).
And if you don't feel comfortable performing this operation, an iron-on patch installation service is available in your Decathlon store.
Warranty:
This sleeping bag is guaranteed for 5 years from the date of sale indicated on the sales receipt. The product covered by the warranty will be repaired or exchanged free of charge. The warranty covers defects in your sleeping bag excluding those resulting from normal wear and tear and those resulting from abnormal conditions of use. This special 5-year warranty will only be granted on presentation of the product and the sales receipt.
