It will also fit the tapered Guyoet bottles, which don't crumple when sat on.

I spoke to a GSI Rep. a few months ago about this issue, he told me that they make two sizes of cups, one that fits over the Nalgene and one that is just under sized. I am not sure why but before you buy one make certain it is the larger one. I went to the same store two different time a couple months apart,est time they had the small one, the next time they had the one that fit.

Hope this helps, I know for a fact if you order it from campmor it will fit.

goat

I use the Snow Peak Solo TI cookset, which fits my Kleen Kanteens very nicely.
[url=Snow Peak ]http://images.google.com/imgres?imgurl=http://www.prolitegear.com/prolitegear/images/items/snow_peak_titanium_mini_solo_cook_set_ti_rg.JPG&imgrefurl=http://www.prolitegear.com/snow_peak_titanium_mini_solo_cook_set.html&h=250&w=250&sz=5&hl=en&start=1&tbnid=pzE7b8jAGxNOjM:&tbnh=111&tbnw=111&prev=/images%3Fq%3Dsnow%2Bpeak%2Bsolo%2Bti%2Bcookset%26gbv%3D2%26hl%3Den%26safe%3Doff[/url]

Thanks for all the great hints, I'm saving these urls, to be sure!