my favorite bottle LOVE this bottle! I have both sizes of the Stash - the 750ml is helpful for when I’m traveling, and taking it on airplanes and when commuting to work every day. I prefer the 1L for hiking and backpacking. It dries out really easily after I clean it, which is helpful. After using it with electrolyte mix in it, my bottle did need some extra cleaning (I like to use Bottle Bright when it gets really dirty). However, other than that, it’s handy and light and durable, which makes this my favorite bottle to use.