Mountain Equipment  Lunar II Sleeping Bag - Women's

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Effectively balancing warmth, weight and packed size, the women's Mountain Equipment Lunar II sleeping bag is designed for backpacking and other adventurous outdoor trips.


  • POLARLOFT® synthetic insulation helps maintain warmth even while wet
  • Lunar 40-denier outer fabric is durable and comfortable
  • Offset layer construction top with single-layer construction on the underside
  • Anatomic hood and foot box
  • Full-length zipper baffle with 65 in. (165 cm) zipper
  • Women-specific Alpine fit helps maximize thermal efficiency
  • Includes a lightweight compression sack
  • Mountain Equipment is a member of Fair Wear Foundation, a European initiative working to improve workplace conditions in the garment and textile industry
  • Closeout


Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Mountain Equipment Backpacking Sleeping Bags

Technical Specs

Item #205578
Best Use


Tested Lower Limit

28 degrees (F) - ISO

Tested Comfort

39 degrees (F) - ISO

Temperature Rating (F)

28 degrees (F)

Temperature Rating (C)

-2 degrees (C)


2 lbs. 7 oz.


40-denier nylon

Zipper Location


Insulation Type



POLARLOFT synthetic fibers

Fill Weight




Sleeping Bag Shape


Fits Up To (in.)

67 inches

Shoulder Girth (in.)

30 inches

Hip Girth (in.)


Stuff Sack Size

8 x 11 inches



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