I'm happy with this bag as it is light weight and packable yet is warm enough for cool temps. Temps in the 50s require base layers to be worn. I'd suggest improving the zipper though. It zips up like a hot knife through butter but down it always jams. When closed, one must wrestle with getting the bag/zipper straightened and just right before it will work. Zippers have been made for how long now and it's the same issue over and over.
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