sportsnut...I'm pretty happy with my Kleen Kanteens. It's stainless steel and doesn't retain any odor, unlike my Nalgenes...which I now use for the dogs. I have a few of them, with the biggest being a 40 ouncer...it will fit in





also I'd suggest avoiding getting the tops that are sports bottle like (where you dont have to unscrew to drink) While they are convenient, they are not leak proof