Makalu II Light Sleeping Bag - Size XL

Ref :
Key feature
Mummy shaped sleeping bag, hood offering good coverage, 3D structure to prevent thermal bridges, two-way zip opening lined with flap
Users reviews
3.69 / 5 32 ratings


Products benefits

Optimum temperature
Temperatures: Comfort temperature -9°C; Limit temperature -16°C; Extreme -38°C
Lightweight product thanks to down, with fill power = 800 CUIN (EU standard)
Compact design
Stuff sack volume: Size L = 11.1L / size XL = 11.7L
User comfort
Silky fabric; 100% polyamide; hood; two-way zip, downy draft flap.


Filling : 90.0% Grey Duck Down, Filling : 10.0% Grey Duck Feather
Approved by
team SIMOND mountaineers on numerous expeditions: especially on Nuptse (Everest)
2 years


Storage Tips
Store your sleeping bag in its storage bag in a dry, ventilated space, as the down may deteriorate if compressed for too long in the compression sack

Additional information

90% duck down,10 % feather; Fill weight: 789 g in size L and 869 g in size XL; Fill Power (loft power of down): 800 Cuin (CE standard) * Our feathers come from Chinese ducks farmed for their meat. We retrieve their feathers after they are culled. We keep the ducks' death certificates
Mummy shape: Shoulder width (80 cm in size L) and tapers down towards feet with room to move but prevent heat loss at feet (20 cm in size L). Anatomic hood shape and a drawcord Two-way front zip with downy draft flap to keep out the cold
Available in sizes : L // XL. Dimensions (cm): L: 210x80 cm / XL: 222x82 cm Weight (g): L=1400 g / XL=1500 g Folded dimensions: L Ø17x27 cm / XL Ø17x31 cm
Temperature rating
We display on all our sleeping bags, the temperature ratings tested in an independent lab (AITEX) based on European Standard EN 13537 (2016). The “comfort temperature” is the lowest comfortable temperature at which a user in a relaxed position is balanced overall in terms of body temperature and is neither too hot nor cold (as determined for an average female user under normal conditions). Choose your sleeping bag based on this feature.
What you must know about temperature ratings
A sleeping bag does not generate heat, but "maintains" heat generated by body. If you are exhausted and cold and you slip in to your freezing and damp sleeping bag, you risk staying cold whatever the sleeping bag's features! These temperature ratings therefore depend on a person's resistance to the cold (build, fatigue, etc.), on their equipment (mattress that insulates from the ground, etc.), on their clothing (naked, underwear, etc.), and on weather conditions (damp, wind, etc.).
Score to compare the environmental impact of products
The environmental impact of the product is calculated over its entire life cycle and with different indicators. An overall score (ABCDE) is attributed to help you easily identify the products with the best environmental performance by comparing products of the same type with one another (T-shirts, trousers, backpacks, etc.). Decathlon chose to apply this voluntary environmental labelling scheme. To get more information:

Users reviews

3.69 / 5 32 ratings
23 users recommended this product
Distribution of ratings

At Decathlon, reviews are reliable.

  • Man
    29 October 2019
    That review has been deposited on this product version
    Hydroscopic material, poor design

    The outter fabric of the sleeping bag os made of hydroscopic material, which means that it attracts moisture . I tested it on altitudes between 1500 and 5000m and temperatures between 2 and -7 deg. Celsius. Every morning it would be wet, forcing me to wait for the sun to come out in order to dry it. My tent partner, also with a down sleeping bag from another brand didnt have this problem. In addition to this, at -7 deg C the heat was escaping through the zip and neck zone, due to the poor design, making the sleeping bag uncomrfortably cold. After the second day of use, the labellings and inscriptions started falling down.

    Brand response :

    Hi Txaber,

    Thank you for the feedback on the Makalu II and I am sorry that it has not met with your expectations. I will forward these issues onto the product designer to take into consideration for future production runs of the Makalu II.

    Once again thanks for the feedback.

    Joseph Sutton | UK Product Expert

  • 11 June 2020
    That review has been deposited on this product version
    Not bad- but has some durability issues

    A little hard to get a good seal between your neck/ face- but for the most part held up to around 15F. The bummer is that the down is escaping through the zipper- needs repair.

  • 06 October 2020
    Use since 1 week or less
    That review has been deposited on this product version
    Füllung verrutsch ständig

    Habe den schlafsack zwar schon das zweite Jahr, trotzdem war er bisher nur 2 mal für 2 Tage im Einsatz.
    Bei den Übernachtungen ist ständig die Füllung in den großen Kammern verrutsch, sodass ich entweder kalte Füße oder einen kalten Rücken hatte. Dies kann durch gezieltes zurechtschütteln behoben werden.... Sorgt aber für extrem unentspannte Nächte.

    Hätte ich das vorher gewusst, hätte ich den schlafsack nicht gekauft.

    Brand response :

    Hallo Patrick,

    vielen Dank für dein Feedback zum Schlafsack.

    Ich kann natürlich verstehen, dass du mit dem Produkt nicht zufrieden bist. Trotz unserer hohen Standards und unseren kontinuierlichen Tests im Entwicklungsprozess, kann es auch uns einmal passieren, dass eines unserer Produkte nicht unseren hohen Ansprüchen genügt. Für die Optimierung unserer Sportartikel nimmt dein Feedback eine besondere Rolle ein. Wir werden dieses auch an die Marke Simond weiterleiten. Du hast bei uns mit einer MyDECATHLON Mitgliedschaft generell eine Zufriedenheitsgarantie von 30 Tagen und kannst auch bereits getestete Artikel kostenlos umtauschen. Wir hoffen, dich in Zukunft wieder von unseren Produkten überzeugen zu können.

    Mit sportlichen Grüßen