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Western Mountaineering

Western Mountaineering Bristlecone LZ Microfiber Sleeping Bag - 66

5.0(3)
$1155.00
sizeS

920+ bought in the past month

About this item

  • MicroLite XP (polyester microfiber)
  • Made in USA
  • 6IN Spacing/Sideblock Baffle
  • 69IN/48IN (Shoulder/Foot) Girth
  • Full Down Collar
  • 8.5IN Loft, -10° F Temperature Rating
  • 3 lbs. 15 oz. Total Weight with 42 oz. of Down Fill

Key details

material
MicroLite XP (polyester microfiber)
fabric
MicroLite XP (polyester microfiber)
closure
Zipper
care
Machine Wash
color_spec
One Color

Dimensions and fit

dimensions
48"L x 8.5"W
weight
3.01 pounds
product_dimensions
48"L x 8.5"W
item_weight
3.01 pounds
size
6'6" Left Zip
maximum_height_recommendation
6 Feet

Technical specifications

item_model_number
Western Mountaineering

Item information

Brand
Western Mountaineering
Color
One Color
Occupancy
1 Person
Shape
Semi-Rectangular
Seasons
Winter
Temperature Rating
Comfort
Age Range (Description)
Adult
Sport
Mountaineering
Special Feature
Full Down Collar
temperature_rating
Comfort
age_range_description
Adult
special_feature
Full Down Collar
fill_material
Down
closure_type
Zipper
outer_material
Polyester
fabric_type
MicroLite XP (polyester microfiber)
upc
813735021703
department
mens
manufacturer
Western Mountaineering
best_sellers_rank
#1,443,899 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2,029 in Camping Sleeping Bags
is_discontinued_by_manufacturer
No
refill
Down
care_instructions
Machine Wash
warranty_description
Limited Warranty
batteries_required
No
import
Made in USA
Highlights

About this item

  • MicroLite XP (polyester microfiber)
  • Made in USA
  • 6IN Spacing/Sideblock Baffle
  • 69IN/48IN (Shoulder/Foot) Girth
  • Full Down Collar
  • 8.5IN Loft, -10° F Temperature Rating
  • 3 lbs. 15 oz. Total Weight with 42 oz. of Down Fill

Product videos

Product video 1

Customer reviews

Customers say

Customer summary is not available yet.

Reviews with images

Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!
See all photos
★★★★★

The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!

The media could not be loaded. This is the 2nd biggest, coldest rated, semi-rectangular down sleeping bag available anywhere. I know, I also own the 1st and third. In my video and several photos, you can see the Bristlecone MF compared to my WM Cypress GWS (Gold/Green -30F) and my WM Sequoia GWS (Grey 5F). All of these bags have been overfilled. When I got the bag back from being overfilled, it was a full 13 oz. over standard spec. weight. My Cypress is 15 oz. over spec. and my Son's Bison is also 15 oz. over the standand spec. weight. My point is, these huge Beasts from WM are serious cold weather bags. Their ratings are conservative. I've slept warm well below zero in my Sequoia on numerous occassions, and at -22F in the Cypress, it was too hot to zip all the way. The quality of workmanship is absolutely impeccable. The comfort level is 10. After the update, I've slept several more nights at or around the -10F mark and have yet to feel a chill. Ridiculously high end super bag. UPDATE: Finally got to test this bag for 2 nights, thanks to a polar vortex. Both nights Cowboy style. No cover. Exped Megamat underneath. First night: -7.8F 4" of snow fell. Was steady all night. I stayed warm all night, no problem. The outershell did wet out around and in the hood and across all the baffle seams where snow had accumulated. It was also wet on the bottom side where blowing snow had packed around the perimeter of the bag. I knew this would happen but I wanted to see exactly how the microfiber compared to the Gore Windstopper in severe conditions. There is no comparison. No air escapes through the Windstopper fabric. The fabric itself is waterproof as well.The microfiber on the other hand, is so breathable that the warm air escaping the bag melts the snow on contact which then soaks into the fabric. So, ...not a snowstorm bag. Second night: -15.2F It stayed this temperature all night long. Clear skies, and bitterly cold, the bag kept me warm and comfortable. I got 6 1/2 hours of restful sleep. Both nights I wore 400gr. merino wool Balaclava, top, bottom and socks. Read more

Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!Customer review image for The Second Biggest, Warmest, Semi Rectangular Premium Down Sleeping Bag on the Planet!
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