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Mountain Hardwear
Phantom 15 Sleeping Bag: 15F Down

5 out of 5 stars
1 Review
$579.99 - $609.99



Why We Like The Mountain Hardwear Phantom 15 Sleeping Bag

Featuring responsibly sourced 850-fill goose down, the Mountain Hardwear Phantom 15 Sleeping Bag provides optimal packability and warmth for the weight. This lightweight bag not only features that premium down, but also features a performance mummy shape for more efficient insulation and less weight and bulk in our pack when we're backpacking or climbing. To keep us extra warm and comfortable, the Phantom also features a four-chamber hood that prevents the down from migrating, a draft collar and down-filled face gasket to prevent heat from escaping, and a contoured foot box to keep our feet in a comfortable, natural position.


  • Time-tested lightweight backpacking bag
  • 850-fill down is exceptionally lightweight and packable
  • 10-denier face fabric reduces weight and bulk
  • DWR coating protects against light moisture
  • RH and LH zippers can be zipped together
  • Down meets Responsible Down Standard for animal welfare
  • Includes compression sack and mesh storage sack
  • Item #MHWZA0M
Responsible Collection
[down] Responsibly Sourced
[face fabric] 10D recycled nylon, [lining] 20D nylon taffeta
850-fill goose down
left-hand, right-hand
Max User Height
[regular] 6ft [long] 6ft 6in
Shoulder Circumference
[short] 56in [regular] 58in [long] 60in
Hip Circumference
[short] 49in [regular] 52in [long] 55in
Bag Length
[regular] 72in, [long] 78in
Draft Tube
Pad Retainer
2-way zipper
Fill Weight
1lb 4oz (572g)
European Norm/ISO Comfort Rating
European Norm/ISO Lower Limit Rating
Storage Sack
Stuff Sack
Stuff Size
[volume] 4.9L (short)-6.8L (long)
Claimed Weight
2lb 1.2oz
backpacking, camping, climbing
Manufacturer Warranty

Overall Rating

5 based on 1 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
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5 Stars - 1 reviews

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5 out of 5 stars

March 1, 2024

the only bag needed

I've owned and used many many sleeping bags. I still own many bags, probably too many. Some are super light and compressible, some are super warm and protective in the gnarliest conditions. After using this bag on a couple of trips, I can already see that it may soon become the only bag I need, and may ever need. It hits such a sweet spot in so many ways. It’s amazingly light and compressible for how warm it is. The 15F temp rating seems too low. I feel like it’s warmer than other 15F bags I’ve used in the past [including an older phantom 15]. and impressively, the fit also seems roomier than other bags i’ve used in this temp/weight class. The lining fabric is super buttery soft and the black color not only feels warmer [i assume because it absorbs more heat? maybe this is just perception], but it also seems to dry out much quicker when flipped inside out in the morning. I’m not sure what i’ll do with my other sleeping bags, but at this point the only bag I need [and want] to be using is this one.


Originally reviewed on