Best reviews of 💯 Forclaz Trek 900, 50°F Feather/Down Camping Mummy Sleeping Bag Hiking Clothing 🌟

50°F/10°C sleeping bag filled with feathers (down, 800 CUIN): high-end.1.5 lbs in size L:warm, light, compact. Mummy shape, yet comfortable. Ergonomic hood. Zipper with double slider. Water-repellent.

Designed in the French Alps, this RDS* certified feather sleeping bag is suitable for sleeping comfortably at temperatures above or equal to 50°F/10°C.

Temperature of use:

All our sleeping bags display the temperature ratings, tested by an independent laboratory (AITEX), in accordance with the European standard NF ISO 23537 – 2017.
The “comfort temperature” is the lower comfort limit at which a user in relaxed position is in overall thermal balance and is neither hot nor cold (determined for an average woman in normal conditions of use). Choose your sleeping bag according to this criterion.

What are the limit temperatures for usage?

Limit temperature: temperature limit at which the user of the sleeping bag in huddled-up position is generally in thermal equilibrium and is neither cold nor hot (determined for a standard man under normal conditions of use). We recommend using an insulation mattress to optimize your thermal comfort.
This sleeping bag is filled with feathers and down. The thermal insulation may drop in damp conditions.

However, this is what you need to know about temperatures:

A sleeping bag does not produce heat but retains the heat produced by the body. If you are tired and cold and you slip inside a cold, damp sleeping bag, it is very likely that you will feel cold no matter how good your sleeping bag is! During the night, your thermal comfort will therefore depend not only on climatic conditions (humidity, wind, etc.) but also on your physical condition, your equipment (mattress, etc.) and your clothing (wool underwear, etc.)

For greater comfort, before getting into your sleeping bag:

Dress simply (1 layer of clothing is enough) Warm up your extremities: Use hats, gloves, socks, bed warmers, rubbing, etc.
A flask filled with hot water can be used as a foot or bed warmer (so long as there’s no chance of it opening by accident!)
Contract your muscles (70% of the energy consumed is converted into heat) but without making any movement generating a cold airstream. Use a silk or thermal sleeping bag liner to maximize warmth and hygiene inside your bag.

Shape:

The mummy shape optimizes thermal insulation (no loss of heat because there is not much air flow or drafts) and saves space, which means that your movements are restricted.
Width at the shoulders 28.7″, height at the feet 10.6″ in size L.
Ergonomic hood with drawstring.
Double slider, lined with an anti-cold duvet flap, side opening.
X-shaped compartmented structure, through-stitching.

Weight and dimensions:

Size S 1.2 lbs, user up to 5’3″ Bag dimensions: Ø 4.5″ x 13.4″. 3.5 liter volume. Weight 9.2 oz down.
Size M 1.4 lbs, users from 5’3″ to 5’7″ tall. Bag dimensions: Ø 4.9″ x 13.4″. 4.2 liter volume. Weight 9.2 oz down.
Size L 1.5 lbs, user from 5’7″ to 6′ tall. Bag dimensions: Ø 5.3″ x 13.4″. 4.9 liter volume. 10.6 oz of feathers.
Size XL 1.7 lbs, user between 6’1″ and 6’9″ tall. Bag dimensions: Ø 5.7″ x 13.4″. 5.6 liter volume. Weight 12 oz down.

Size and thermal insulation:

Try your sleeping bag before buying it to choose the right size for your comfort. Ideally, you should not be pressed up against the fabric, at the feet or head, and the fabric should not be taut. This would create thermal bridges that lower the insulation of your sleeping bag. Conversely, a sleeping bag that is too big will be harder to heat up and will not be as good at insulating the heat generated by the body.

Size and thermal insulation (continued):

The weight, volumes, and sizes may vary slightly owing to production tolerances.
Volume and dimensions in the bag may vary according to the compression applied to the product.

Origin of feathers and RDS certification:

Our traceability system lets us guarantee the origin of the feathers in accordance with our commitment to use responsible materials. Our suppliers are committed to using only feathers that come from ducks (Chinese origin) that are bred for their meat and are plucked after slaughtering.
We have been awarded RDS certification (Responsible Down Standard) by a 3rd-party organization.

http://sustainability.decathlon.com/media-reports/

The advantages of a duck down and feather fill:

The fill power of down has 3 advantages for mountain sports:
– Thermal insulation provided by the air trapped in the down and feathers
– Ultra low weight: Down is lighter than synthetic fill 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 fill?

The fill power is a measure of the down’s thermal insulation capacity and its potential to “trap” 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.
90% duck down, 10% duck feathers.
Filling Power of the down: 800 CUIN (IDFB standard)

The feather filling requires special care. Follow care advice.

Care instructions

Machine wash on a delicate cycle at 86°F, wash inside out, with 3 or 4 washing balls (or clean used tennis balls). Use a detergent for feathers and down. Rinse multiple times. Spin dry on a slow and gentle cycle. Required step: Tumble dry on low heat on a delicate cycle. Finish off drying outside, ideally in the sun, on both sides to prevent the down from forming clumps. Dry thoroughly before storing.

Warranty:

This sleeping bag is guaranteed for a period of 5 years from the date of sale indicated on the receipt. The product covered by the guarantee will be repaired or exchanged free of charge. The warranty covers product defects excluding any resulting from normal wear and tear and those resulting from abnormal use. The product and sales receipt are required for this special 5-year warranty to be valid.

Eco-design

We have chosen to use a “biton” yarn in the sleeping bag lining (gray).
Textile dyeing requires a lot of water but also produces waste water from the dye baths. To reduce this impact on the environment, we chose to use a dyeing process called “bi-ton,” which involves dyeing 1 in every 2 yarns. This dyed yarn is also dyed using mass pigmentation, using color pigments when the yarn is manufactured.

Composition

Filling : 90.0% Grey duck down, Filling : 10.0% Grey duck feather
Lining : 100.0% Polyamide
Shell : 100.0% Polyamide
Carry bag : 85.0% Polyester cationic, Carry bag : 15.0% Polyurethane
Bag cover : 100.0% Polyester cationic

Optimal temperature : Comfort temperature 50°F/10°C, limit temperature 41°F/5°C

Easy to transport : 1.5 lbs in size L. 4.9 liter volume. 2 bags: stuff bag and storage bag.

Sleeping comfort : Comfortable mummy shape, ergonomic hood. Long zipper with double pull.

Water repellent : Water-repellent fabric to optimize the thermal performance of your sleeping bag.

Warmth : RDS ethical down and feathers with a fill power of 800 CUIN.