The bottle is very nice. 600mL stainless steel, not too heavy and fits into the tight side pockets of my Filson computer bag much easier than the round Sigg bottle (with cup removed).

I have also changed to my older Filson computer bag instead of the shoulder bag as I got a laptop from work that I carry back-and-forth. Other contents of carry bag is about the same, except I moved the round titanium cup to my car kit and plan on using the Sigg cup. The oval Sigg cup is not quite as useful (and actually will not work on my sideburnner small alcohol stove) but will work on an Esbit or twig fire.