I've used the EMS -30 on Aconcagua but upgraded to the Cwm for my next trip there. The Cwm is a much better bag than the EMS. Of course, it costs more but a warm night is worth it. The Cwm is popular with other mountaineers around here.

Similar Products Used:

REI, Northface.

I have used this bag in several below zero snowshoe trips and it has performed perfectly. I am a moderately warm sleeper and was forced to open up the bag in -10F weather. The DryLoft shell kept hoar frost from compromising the insulation. Though the bag is somewhat heavy, it does what it says it will. The only problem, if you call it that is the overfill which causes the zipper to snag occassionally. I have had it only two seasons, but it still lofts as good as new. If you winter backpack or climb this is your bag - there are no substitutes. Other bags are too heavy or more money. I would have happily spent more, but with the CWM, why? I wholeheartedly reccommend this bag.

Customer Service

VERY helpful getting info from. I haven't had any problems yet to get help for!

Similar Products Used:

TNF, Sierra Designs, Slumberjack

Super Bag. occasional zipper bind( too lofty..I guess) If your cold in this bag, sin alot cause only Hells hotter!
Ive tested this bag in -47 degrees centegrade with wind chills to -60. It is exceptionally good. Thanks marmot.

Similar Products Used:

tnf(the north farce)