I have just returned from a two week trip where I used two Klean Kanteen bottles, a standard 800ml “Reflect” and a larger 1200ml “Wide“. It was extremely hot so carrying more water than normal was important . Water bottle cages used were Velo Orange, Grand Cru Type I for the regular size and a Mojave for the 1200ml bottle which is as the name implies wider than a normal bottle.
I used the larger “Wide” bottle to top up the smaller “Reflect”. I changed the regular bamboo lid on the Reflect for a “sports cap”. This was to make it easier to drink on the go which is tricky with the standard lid. It is also better to use the wide as a top up bottle as drinking while moving is also difficult due to the large mouth.
Having used Klean Kanteen bottles I can say that water tastes better and stays cool longer compared to plastic bottles. Although they are more expensive they are built to last, so in the longterm they are a better investment and in my opinion they look better too.