Western Mountaineering Bristlecone MF -10 Degree Sleeping Bag

About This Item

Temp Rating

Below -5 Degrees

Insulation Type

Down

Design and Details

  • Made with lightweight, weather-resistant MicroLite XP shell fabric
  • 6" spacing of sideblock baffles prevents down migration
  • 69"/48" shoulder/foot girth gives you plenty of moving around space and room for adding extra layers when the temp drops
  • Full down collar helps to seal in your body heat
  • Large draft tube runs the full length of zipper, preventing cold drafts from disturbing your slumber
  • 850+ down fill power provides excellent warmth to weight ratio and compressibility
  • Can be unzipped to lie flat or zipped to compatible mummy bags
  • 42 oz of down fill gives this bag 8.5" of loft and a rating to -10° F
  • 3 lbs. 15 oz. total weight
  • Made in the USA
  • Brand : Western Mountaineering
  • Web ID: 23XFMABRSTLCNMF10CSL
ShapeSemi rectangular
Temp Rating-10° F / -23°° C
Weight6'0": 3 lb 15 oz; 6'6": 4 lb 3 oz
Insulation TypeDown
Fill Power850+ Power goose down
Fill Weight6'0": 42 oz; 6'6": 45 oz
Shoulder Girth6'0": 69"; 6'6": 69"
Hip Girth6'0": 61"; 6'6": 61"
Knee Girth6'0": 48"; 6'6": 48"
Shell Fabric20D Microfiber
Zipper LocationLeft / Right
Stuff Sack IncludedYes
Stuff Sack Size6'0": 10" x 20"; 6'6": 10" x 20"

REVIEWS

5.0
100%
Recommended

3 Reviews

Best Winter Sleeping Bag Ever!

I have used my Bristlecone sleeping bag numerous times in the deep snow and wilderness mountains of Utah. What an excellent performer! Even in sub-zero temps this bag keeps you toasty warm! Probably the best bag I’ll ever own!

Verified Purchase

Reputation And Build Quaint Second To None!

Western Mountaineering's reputation I beyond question so I needed to find the right fit. I am 5'-8" and #170 but I toss and turn all night. I bought this bag due to its wider size and its great. I can bring my knees up to my chest with ease. I brought a lesser quality down on my trip to Alaska last October and froze for 10 days with every piece of insulation I could find. This bag is so much more substantial and the attention to detail is evident. I climbed into it here at home and it was like an oven instantly but with the larger size I can adjust the zippers and hang out my legs and still pull enough of the bag around me to seal off unwanted air. Paired with my new Exped Downmat staying warm this October is the least of my worries.

Verified Purchase

Best Bag Out There

This is our 6th WM bag. Our original bag was purchased in Alaska over 25 years ago. There is not a better bag out there. Dependable warmth. Durable.

Read All Reviews (3)