In stock
As low as $640.00

For alpine winter mountaineering and remote backcountry ski expeditions, there can be few bags as reliably warm yet so light.

Good Night's Sleep Temperature:
Comfort Limit:
Total Weight:
1225g / 43oz
Fill Weight:
743g / 26oz
Pack Size:
29cm x 25cm x 23cm
Check Size Guide for Details of All Lengths

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  • DRILITE® LOFT™ XERO 10D outer shell is ultra-light, highly breathable and water-resistant
  • 743g of 90-10 Russian Goose Down with a minimum fill power of 800
  • Alpine fit with EXL® system improves loft and maximises thermal efficiency
  • Trapezoid baffles throughout
  • Ground level side seams with V-side baffle
  • 7 baffle low volume anatomically shaped hood
  • 6 baffle anatomically shaped and offset foot-box
  • Full length Gemini™ zip baffle and integrated neck collar with Lode Lock™ closure
  • DRILITE® LOFT™ XERO 10D inner foot-box and hood lining
  • Supplied with waterproof roll-top stuff-sack and storage cube
  • More Information
    Product Code ME-003501
    Colour N/A
    Additional Image Block Optimised Extreme Alpine, EXL Collar, Drilite Loft Xero
    Activity Winter Camping, Winter Alpinism, Expedition, Polar
    sleep_sort No
    We Recommend No
    Enable External Stockist Button N/A
    Content N/A
    Hyperlink N/A
    Background Color N/A
    Logo External Stockist N/A


    Length Inside (a) 190cm/75in 205cm/81in
    Max Width Inside (b) 75cm/30in 75cm/30in
    Inside Foot Width (c) 50cm/20in 50cm/20in
    Max User Height 185cm/73in 200cm/79in
    Total Bag Weight 1225g/43oz 1275g/45oz
    Total Fill Weight 743g/26oz 770g/27oz
    Packed HxWxD 29x25x23cm/11x10x9in 30x26x23cm/12x10x9in

    800+ Fill Power Goose Down

    Our very best Eastern European goose down. Sourced from Western Russia, with an actual minimum down cluster content of 93%* & individually tested to ensure a minimum fill power of 800 cubic inches & DOWN Codex approved.

    Drilite Loft

    Exceptionally light, highly breathable and water resistant shell fabric used to protect down inside sleeping bags and clothing.

    • Optimised

      Trapezoid 14:7cm baffles running horizontally throughout the main body have been combined with a full EXL® system (both top and bottom) on the inner to minimize dead air space, reduce drafts and maximize loft. This strikes the ‘sweet-spot’ for lightweight expedition bags, removing weight from the bag’s main structure whilst maintaining higher levels of both loft and down control. However, mindful of their need to work in extremis, overall performance is then strengthened by the addition of a V-block side baffle, 6 baffle foot piece and 7 baffle hood.

    • EXL® Collar

      Our neck collar with EXL® improves the thermal efficiency of our integrated neck collars. Elasticated stitching is used in addition to our normal adjustment system to allow the collar to gently wrap around the users neck providing improved thermal efficiency.


      Exceeding the impressive 1500 mm hydrostatic head of the original DRILITE® LOFT™ but with a staggering weight of only 28g/m2, DRILITE® LOFT™ XERO is a class-leading fabric for the most serious users: it’s amongst the lightest highly water resistant shell fabrics in the world. Ideal for Super Alpine climbing and the most lightweight expeditions where protection, pack size and weight are critical to success and even survival.