I have had the 35 degree Sierra sniveler for 4 years. It has the dry down and the shell resists moisture reasonably well, I think it weighs 1# 9 oz. For me, it isn't true to temp but I'm a cold sleeper. I got the flannel liner with it and using both is comfortable to me down to around 30. It packs really small and lofts back up pretty quick. The down will shake down to each side while I'm sleeping and that would be my only complaint , but that may be so in any of them. If I was looking for another, I'd buy from them again.