Mountain Equipment Glacier Expedition Sleeping Bag (-35°C/-31°F)

An ideal bag for polar and Himalayan expeditions. Incredibly warm and one of only a handful of bags to make use of Mountain Equipment's roomier Expedition fit, it is well suited to nights on ice. From Himalayan basecamps to polar research tents, the Glacier Expedition offers extreme warmth and comfort in some of the coldest conditions on Earth.

Using 1,352 g of minimum 700 fill power DOWN CODEX-approved duck down and a lightweight and water resistant 30 denier Drilite Loft outer fabric with recycled face, the Glacier Expedition is both exceptionally warm and able to withstand heavy use on long and demanding trips.

Trapezoid baffles across the top of the bag ensure optimal loft, reduce cold spots and prevent down migration. At the foot of the bag, a six-baffle system focuses warmth around your feet, essential when spending extended time in dangerously cold climates. In the hood, a five-baffle system ensures the down is optimally distributed for warmth and protection over long-term use.

Inside the bag, the time-tested EXL elasticated stitching system minimises dead airspace, reduces draughts and pulls the liner fabric away from the down, allowing it to loft effectively for maximum warmth. A full-length Gemini entry zip baffle eliminates heat loss in this vulnerable area and is stiffened so it will not catch in the zip. The low-profile magnetic Lode Lock closure and collar drawcords are effective and easy to use in the dark.

Key Features

• 1,352 g of 90/10 pure duck down with a minimum 700 fill power
• DOWN CODEX-approved down sourcing
• Drilite Loft 30 denier outer fabric with recycled face, PFAS-free DWR
• Drilite Loft 30D fabric extends into hood and collar for increased water resistance
• Roomy Expedition fit for comfortable sleeping and accommodating extra clothing
• Trapezoid baffles and slanted box-wall baffles throughout
• 5-baffle anatomically shaped hood for warmth and protection
• 6-baffle anatomically shaped and offset foot box for superior warmth
• Full-length Gemini zip baffle with 140 cm zip and integrated collar with Lode Lock closure
• Mid-level side seams for enhanced durability and structure
• Supplied with waterproof roll-top stuff sack and storage cube
• Built to last and backed by a Product Lifetime Guarantee

Specifications

Temperature Ratings

For Expedition bags, Mountain Equipment does not provide Comfort, Limit or Extreme ratings, as the ISO 23537 test excludes the testing of extreme climate zone expedition sleeping bags, or bags which have a measured limit temperature colder than -24°C.

Ideal For

• Polar expeditions and research
• Himalayan basecamp and high-altitude mountaineering
• Extended cold weather expeditions
• Nights on ice and in extreme cold climates

Care Instructions

Technology

	Down Codex Since 2009, the DOWN CODEX programme has set high ethical standards for down sourcing, eliminating live-plucking and force-feeding, and ensuring only top-quality virgin down is used, certified to the Responsible Down Standard (RDS). A multi-award-winning certification scheme grounded in comprehensive and transparent auditing that ensures full traceability and quality.
	Down 700 Down is the finest insulator Mountain Equipment uses. Its warmth-to-weight ratio, compressibility, long lifespan and softness are yet to be matched by man-made insulations. For all but the most serious expeditions, duck down is a great choice for both insulated clothing and equipment.
	Drilite Loft Drilite Loft is an exclusive range of highly water-repellent fabrics used in Mountain Equipment's insulated clothing and equipment. With a water-repellent coating that offers genuine water resistance (1,500 mm hydrostatic head), Drilite Loft fabrics remain highly water resistant throughout the lifetime of the product.

Fair Wear Foundation

Mountain Equipment is a proud member of the Fair Wear Foundation, committed to implementing the highest standards of working conditions in garment production. Designed and developed in the UK, built to last and backed by a Product Lifetime Guarantee.