I've been carrying 2 of these, 1 I take to work and the other in my LRBOB kit. The one I have is 32 oz backpacker stainless steel with stainless threads, just the cap is plastic. I've boiled water in it, it is non vac jacket and will fit water filters and steripen.


http://www.guyotdesigns.com/stainlessbottles?sc=11