I don't know about the Primus bottle, but I've got a few stainless Nalgene/Guyot and Kleen Kanteen bottles. They're nice in that you can boil water in them and they do a pretty good job of keeping water cool in the summer time.

On the downside, they aren't too good in the winter unless you keep them insulated in something and they sometimes dent when dropped (which, so far, has only been an aesthetic issue.)

The biggest issue, for me, with stainless bottles is the weight. My 18 ounce Kleen Kanteen weighs 6.4 ounces empty; which is about the same weight as an empty 32 ounce Nalgene. You start getting into larger bottles and they get pretty darn heavy in relation to how much water they carry (they also get more easily dented the larger and heavier they get).


You could carry a 32 ounce classic Nalgene and stainless cup combo and it would weigh less than a stainless 32 ounce bottle, while offering similar functionality. (Probably better functionality, as you can boil water or make food while still drinking from the bottle). Something to think about.

Personally, for hiking/camping I carry a 3L Camelbak and a 16 ounce Nalgene with titanium cup (the latter being a backup/emergency reserve....the new Camelbaks are better than the old ones, but I always worry about them leaking or bursting). The only stainless bottle I use anymore is my 18 ounce Kleen Kanteen, and that I just use as an everyday/around-the-house bottle.