The first few times I used this bag happened to be in warmer temperatures than it is supposedly design intended. The first time I used the thing on a cold weather excursion, in temperatures ranging from 0F down to -20F, I was quite uncomfortable to say the least. The next cold weather bag I buy will most certainly be a down bag. I am unsure whether it is the 3D Polarguard that is lacking in performance or the "Sierra" design. I am happy with the performance level of most Sierra Design products but was disappointed in this particular instance.

Customer Service

If this is the comments about the manufacturer or comments to the manufacturer I would like to express my deepest apologies for disrespecting your company and would still appreciate samples of your other merchandise to personally scrutinize. Cheers.

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Rei, Kelty.