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The Western Mountaineering Bristlecone MF -10 Degree Sleeping Bag is a spacious sleeping bag for winter exploration. Rated down to -10°F, if the wind is howling and snow blowing outside your tent, you might as well climb inside and revel in the warmth of 42oz of 850+ fill power down. It's baffles are packed so full you're getting an 8.5" loft, but incredibly it still only weighs 3lbs, 15oz. It features two zippers so you can zip it together and snuggle close with another or lie it out flat in weather that is warmer. Quality, made in the USA craftsmanship, sweet.
FEATURES of the Bristlecone MF -10 Degree Sleeping Bag by Western Mountaineering
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
Fill Weight (Long):
Fill Weight (Regular):
Max User Height (Long):
6 ft 6 in.
We only ship this brand to US Addresses.
Hip Circumference (Regular):
Foot Circumference (Short):
Shoulder Circumference (Long):
Backpacking, Winter Camping, Basecamp and Expedition, Mountaineering and Alpine
Rated 5 out of
C David from
Best Cold Weather Bag For Those Who Want RoomIf you sleep on your side or stomach, or just need a bit more room to sleep comfortably on a cold night, this is your bag. This bag gives 8+ inches of loft, plenty of shoulder girth, room to roll over or even sleep on your side without having to roll the bag on edge (keeps maximum down on top of you for the best insulating power).,,,,And the bag oozes quality. The snag free zipper is a heaven-send when temps plunge and you really NEED the zipper to work right. Rated at -10, this bag can go most places in the lower 48 states in the dead of winter. Add a silk bag liner and even the coldest nights won't keep you from a great night’s sleep.,,
Date published: 2010-01-28
Rated 5 out of
Great super warm comfortable bag with lots of room!I have a WM Badger sleeping bag that I used in winter with lots of clothes and wasn't always warm enough. Along with my Thermarest Luxury Camp mattress this thing kept me toasty warm with just long underwear on to 10 below. This is a huge bag with a semi-rectangular shape so if you are small that may be an issue although it gives you room to add lots of clothes if you want. I'm 5'9" 190 lbs. with wider shoulders so I love the extra room as I can sleep on my stomach if I get that urge. You can also stuff items in the bottom to keep from freezing so the two zippers come in handy for that as well. With some extra clothes on I can see this bag keeping me warm to 20-25 below no problem.
Date published: 2010-04-19
Rated 5 out of
Finally a bag for the husky gentlemanOK, I'm a big guy. My european shoe size is triple digits. I wear a bora 95 as a fanny pack. Big whoop, wanna fight about it? Anyway, this bag is unbelievable. As warm as any bag, what makes it the best is the size. I can sleep stomach down like all good people do, and not have half my torso out in the elements. This is basically an average studio on the lower east side, with loft! It fits tight into an extra large stuff sack and the bottom of a decent-sized pack (my south col takes it like a man). This is THE cold weather down bag for the clydesdale crew.
Date published: 2010-12-06
Rated 5 out of
Purchasing this bag 16 years ago was the best money I have ever spent on Hunting gear.Over the Last 16 years this bag has kept me extremely comfortable hunting and fishing in Canada and Alaska. I have been a Scout Leader for 25+ years where we try to do a campout every month. I use this bag from the warm summer months to Snow caves in winter months in the High Uintas of Utah and the High Sierras of California. The lightness of this high quality down keeps the temperature of your body just right and doesn't over heat when its warmer. After much frustration over never being warm enough while camping with Boy Scouts I decided to find the best bag I could find. I went to a specialty mountaineering store in SLC and found the Bristlecone. I learned from an old Scouter that when you buy a high quality down bag it can way outlast cheaper ones and ends up being a lot less expensive. I have been caught out in some severe sub zero weather conditions where others have been in jeopardy of getting too cold and I have always stayed comfortably warm.
Date published: 2014-12-09
Rated 5 out of
Comfortable, versatile and well made. Worth the money.This is a great sleeping bag. In the weight vs comfort/good night's sleep equation, I will gladly carry and extra pound to sleep well all night in almost any temp and be free to thrash around a bit. The ability to open up the feet or lay the bag out flat makes for a much wider range of temps possible. The fabric feels good on your face, it doesn't seem to leak feathers and the whole bag just oozes quality.
Date published: 2008-04-13
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