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The Western Mountaineering Bag Expander adds the extra space needed to your favorite Western Mountaineering sleeping bag. Do you have wide shoulders or sleep like a tornado? Never fear! You can now slide into your bag comfortably and roll around as you please with this handy bag expander. It makes the bag just wide enough for more comfort as you sleep.
FEATURES of the Western Mountaineering Bag Expander
Designed to coordinate with only Western Mountaineering sleeping bags
Instantly provides more space in sleeping bag
Great for creating extra room for warmer weather camping
Also allows you to squeeze into a Western Mountaineering sleeping bag with a snuggle buddy
We only ship this brand to US Addresses.
Mountaineering and Alpine, Backpacking, Ultralight Backpacking
Rated 5 out of
Works with my Montbell ULSS Down BagsTook a chance and bought the WM Bag Expander because it's half the weight of all the other brands. Needed it to squeeze my spoiled dog in my bag when the temps were too cold for her. Works like a charm. It's a little longer than my regular length Montbell bag but the zippers match so that's what matters. Don't know if it will work with other brands but it works for sure with the older models of the Montbell Ultralight Super Stretch Down bags.
Date published: 2013-04-04
Rated 5 out of
Western Mountaineering makes the finest gear on the planet!This exceeded what I expected, my last expander panel didn't even cover the full length of the zipper, COLD. The only thing I would like to see is a four season (this is three season) product. All in all this company makes top notch gear, you won't be disappointed. Thanks Moosejaw for carrying this!
Date published: 2014-12-23
Rated 5 out of
Great additionAdds a great deal of room to already great WM bags. Allows the addition of down jacket to boost warmth if needed. Well made like all WM gear.
Date published: 2015-10-16
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I already have 3 bags that cover most temps. What I need is something real light under 1 lb. That in temps of 80+ will work as a nice bag. So I guess my question is can this be used as a stand alone bag?
Asked by: Painted Turtle
That’s a great question! I’ll have to do some super sleuthing to get an answer for you, but I’ll update you with more information ASAP!