Altitude Down Winter
Down Sleeping Bag
from £ 739.00
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  • Free shipping
  • 30-day Return period
  • Free Returns
Designed for:
The Altitude Down down sleeping bags provide outstanding protection in the toughest conditions. The high quality materials and cleverly designed details make the Altitude Down the ideal choice for expeditions at extreme altitudes.


Item no.2410-01611 CutBasic


Inner width in foot area (EN 13537:2012)54 cm Construction typeAdvanced Baffling chamber Windchill °C-22 °C Windchill °F-8 °F Maximum inner width (EN 13537:2012)84 cm Warm collarYes
  • Lightweight Trinity construction provides greater protection and better insulation in foot and head areas
  • Box Construction: ensures greater fill power, an anatomically better fit and noticeably improved heat insulation
  • Advanced Baffling chamber construction stops down from slipping and therefore prevents cold bridges when lying on your side and when the upper body is raised
  • Differential Cut improves fill power, insulation capacity and saves weight
  • shelterTX™ membrane material: waterproof and breathable
  • Two-layer, 14-chamber construction provides extra warmth in foot area of 5-season model. Winter model has 9 chambers
  • Removable fleece foot section in 5-Season model provides additional comfort and improved insulation
  • 12-chamber hood provides maximum protection from cold in head area
  • Large warm collar prevents heat loss
  • Large internal zipper pocket
  • Contains textile products of animal origin (down or leather)

Material & technology

Main Fabric
100% Polyamide
95% White goose down | 5% White goose feather
100% Polyurethane
100% Polyamide
Mammut Down 800 cuin RDS - Responsible Down Standard Certified Fair Wear


Machine wash on synthetics / permanent press cycle (max. 30° C) Do not dry clean or use solvents to remove stains Tumble dry at low heat Do not use chlorine-based bleach Do not iron or treat with steam

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Shipping costs
Delivery is free of charge from a purchase value of £150 or more. A delivery charge of £6.95 will be applied to orders below this purchase value.

Delivery lead time
We aim to process all orders as quickly as possible - orders placed before 11 am (Mon-Fri) are generally dispatched on the same day. Orders placed after this time are dispatched the next working day at the latest, which means the delivery lead time is generally 2-5 working days. You will receive a dispatch confirmation including a tracking number as soon as we have transferred the order to our logistics partner.

Delivery country
In the online shop for european countries, deliveries can be made only within the following countries: Belgium, the Netherlands, Denmark, Italy, Poland, Slovenia, Slovakia, Spain, Sweden, Czech Republic.

Shipment tracking
Together with the dispatch confirmation, you will receive a tracking number and a link which you can then use to check the status of your parcel.


We will send you an e-mail as soon as the item is available. Information on our data protection policy


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