REI Co-op Magma 15 Sleeping Bag - Women's

$399.00
Color:Asphalt
please select a Size
Quantity
Order by 9am PT on Dec. 17 for delivery before Dec. 25. Members get free shipping! Learn More (Opens in a new window)
Choose a shipping method
To buy, sign in as an REI Co-op Member or join now.
Members get an estimated $39.90 back on this item.
Join the co-op today to get access to a lifetime of benefits.

Members, get an estimated $39.90 back on this item as a part of your annual .

If you want to hike ultralight and sleep well at night, look no further—850-fill-power goose down gives the women's REI Co-op Magma 15 sleeping bag our highest warmth-to-weight ratio.

  • Features

    • Designed specifically for women, with increased hip room and decreased shoulder room for improved thermal efficiency
    • Generous knee and foot space and a fitted silhouette help deliver the most efficient warmth-to-weight ratio in the REI Co-op brand sleeping bag line
    • Downproof Pertex® shell, water-resistant 850-fill-power goose down and supple 15-denier lining combine to provide lasting coziness and a supersoft feel
    • Down is certified to the Responsible Down Standard (RDS) and bluesign® approved
    • Trapezoidal footbox keeps feet comfy; a toe box baffle positions downward to provide warmth
    • Variable baffle spacing locates and stabilizes the down fill, delivering high thermal efficiency and reducing weight
    • New zipper cover and internal antisnag strip combine for easy zipping; a hybrid zipper path provides easy access along shoulders and torso
    • Contoured hood retains warmth while providing space for a low-profile pillow; 2 different hood drawcords allow internal adjustment to avoid heat loss
    • Insulated yoke fills neck and shoulder gap to prevent heat loss
    • Includes a stuff sack for packing and a roomy mesh sack for breathable storage

    Imported.

    Many sleeping bags are rated for temperature by an independent testing protocol. REI and the broader industry now use the International Organization for Standardization (ISO) 23537 protocol, which improves on the older European Norm (EN) 13537 standard; you may still see older items in our assortment that were only EN tested. With either protocol, each bag gets a Comfort (or T-Comfort) rating and Lower Limit (or T-Limit) rating. 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. Ratings are based on a person wearing one long underwear layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38. Many brands use the Comfort rating for women's bags and the Lower Limit rating for men's and unisex bags. Everyone's body and sleep comfort differ, and conditions of use (posture, clothing, sleeping pad R-value, wind, humidity, etc.) affect total insulation, so EN and ISO ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth.
    View the REI Co-op Magma Product Line View all REI Co-op Women's Sleeping Bags
  • Technical Specs

    Best Use

    Backpacking

    Tested Lower Limit

    3 degrees (F) - EN

    Tested Comfort

    17 degrees (F) - EN

    Temperature Rating (F)

    17 degrees (F)

    Temperature Rating (C)

    -8.3 degrees (C)

    Weight

    Regular - Right Zip: 2 lbs. 4 oz.

    Long - Right Zip: 2 lbs. 6 oz.

    Shell

    Pertex® 15-denier ripstop nylon (bluesign® approved)

    Zipper Location

    Right

    Insulation Type

    Down

    Water-Resistant Down

    Yes

    Fill

    850-fill-power goose down (RDS certified and bluesign® approved)

    Fill Weight

    Regular - Right Zip: 1 lb. 7.5 oz.

    Long - Right Zip: 1 lb. 8.5 oz.

    Lining

    15-denier ripstop nylon (bluesign® approved)

    Sleeping Bag Shape

    Mummy

    Fits Up To (in.)

    Regular - Right Zip: 66 inches

    Long - Right Zip: 72 inches

    Shoulder Girth (in.)

    60 inches

    Hip Girth (in.)

    57 inches

    Stuff Sack Size

    7.5 x 15 inches

    Stuff Sack Volume

    10.9 liters

    Compressed Volume

    Regular - Right Zip: 7.3 liters

    Long - Right Zip: 10 liters

    Gender

    Women's

    Sustainability

    Down certified to the Responsible Down Standard (RDS)

    Contains materials that meet the bluesign® criteria

  • Reviews
    64 reviews with an average rating of 4.4 out of 5 stars

    Loading Reviews...
  • Questions & Answers

    Loading Questions...