Quote:
Originally Posted by Tomkat
May as well ask "what's the best tent/oil/helmet/travel bike"  ...I was surprised to find fit came into it as well - the first one I got was way too tight round the shoulders, so being able to try them on in the shop is a plus.
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This is an important point. A lot of manufactured stuff is designed to spec out well, without regard for real-world utility. The best temperature ratings in combination with total weight can be achieved in a very narrow bag with a short zipper. This *might* work well for a very narrow person who also happens to be perfectly content sleeping in one position all might, straight as an arrow with hood drawn and hands at sides. If this is not you (as it's definitely not me), you might need a much wider bag with a full zipper--it'll show up with a much higher temperature rating for the same weight, or a much heavier weight (and larger packed size) for the same temp rating.
Score this one in favor of brick and mortar shops, where you can measure your own loft and by all means try the bag out yourself before buying. If your first bag costs an extra ten or twenty dollars/pounds/Euros, consider it money well-spent.
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