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Marmot  Bantamweight 15 Sleeping Bag - Men's

$390.73 – to $432.73Save up to 30%

Ultralight and easy to pack, this Marmot sleeping bag is filled with lofty 900+ fill-power Down Defender. Smooth, curved baffles help keep the down in place to reduce cold spots during the night.

Color: Dark Azure/Clear Blue
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Features

  • This lightweight, highly compressible down sleeping bag is ideal when space and weight are at premium
  • Certified 900+ fill-power goose down with Down Defender to improve water resistance in wet conditions
  • Center zipper for easy access
  • Smooth, curved baffles reduce down shifting
  • Feely drawcords to cinch hood
  • ISO-tested for reliable temperature rating
  • Slim mummy fit to reduce weight and increase thermal efficiency
  • Compression and storage sack included

Imported.

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 Marmot Backpacking Sleeping Bags

Technical Specs

Best Use

Backpacking

Tested Lower Limit

15 degrees (F) - ISO

Tested Comfort

26 degrees (F) - ISO

Temperature Rating (F)

15 degrees (F)

Temperature Rating (C)

-9 degrees (C)

Weight

Regular - Center Zip: 1 lb. 8.3 oz.

Short - Center Zip: 1 lb. 6.3 oz.

Long - Center Zip: 1 lb. 11.5 oz.

Ultralight

Yes

Shell

100% nylon ripstop

Zipper Location

Front

Insulation Type

Down

Water-Resistant Down

Yes

Fill

900+ fill-power goose down

Fill Weight

Regular - Center Zip: 1 lb. 2 oz.

Short - Center Zip: 1 lb. 0.2 oz.

Long - Center Zip: 1 lb. 4 oz.

Sleeping Capacity

1-person

Lining

100% nylon ripstop

Sleeping Bag Shape

Mummy

Fits Up To (in.)

Regular - Center Zip: 81 inches

Short - Center Zip: 74 inches

Long - Center Zip: 87 inches

Shoulder Girth (in.)

Regular - Center Zip: 60 inches

Short - Center Zip: 57 inches

Long - Center Zip: 62 inches

Hip Girth (in.)

Regular - Center Zip: 53.9 inches

Short - Center Zip: 52.4 inches

Long - Center Zip: 54.7 inches

Stuff Sack Size

Regular - Center Zip: 6.3 x 13.8 inches

Short - Center Zip: 6.3 x 12.6 inches

Long - Center Zip: 6.3 x 14.6 inches

Stuff Sack Volume

Regular - Center Zip: 7 liters

Short - Center Zip: 6.4 liters

Long - Center Zip: 7.4 liters

Compressed Volume

Regular - Center Zip: 6.7 liters

Short - Center Zip: 5.4 liters

Long - Center Zip: 7.7 liters

Gender

Men's

image of a girl hiking in iceland

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Reviews
6 reviews with an average rating of 4.8 out of 5 stars

100% 4 of 4 reviewers recommended

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Pete Takeda
Rated 5.0 out of 5 stars
3 years ago

Premium Bag for Wide Range of Activities

The Bantamweight bag fits a wide range of temperatures and conditions. Its a very lightweight and compact performance sleeping bag. Ive used this for multi-day alpine routes and camping in a tent. Temperatures ranged from 0 degrees to 40 degrees F. I use this bag a lot for travel to save space and weight. For very low temperatures (while climbing a big mountain for instance), I wear a jacket while sleeping. Attached is a gear testing video of the Bantamweight with an adjustable footbox. Though not included in the production model, that particular feature is included in other marmot bags.

Nevadan
Rated 5.0 out of 5 stars
3 years ago

Cozy

Cozy and warm. No room if you want to bring in your boot liners. Pretty tight for a big guy (across the shoulders) and similarly tough to get into the bag with the short zipper. Beautiful bag and super compressible.

Poncho1
Location:Texas
Rated 5.0 out of 5 stars
2 years ago

This bag is assume.

[This review was collected as part of a promotion.] I cannot wait to take this bag on the Arizona Trail this year. 900 fill goose down. I'm sorry but I am not a "quilt guy". I enjoy the mummy shape. It is my favorite bag.

Skeet
Location:Colorado
Rated 4.0 out of 5 stars
1 year ago

Marmot Bantamweight 15° bag

Incredibly warm and super lightweight! Great bag! Not a huge fan of the partial front zip. (Kinda hard to get into and out of)

WoefulBison
Rated 5.0 out of 5 stars
9 months ago

Love it

[This review was collected as part of a promotion.] Great bag. Toasty, long, light weight. What's not to like.

Anonymous
Rated 5.0 out of 5 stars
1 year ago

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