Originally Posted by Tourist in MSN

From a bike touring perspective, I use 1 liter water bottles. The ones I use are the disposable ones sold in USA under the Smartwater brand or the Life WTR brand, but I do not dispose of them, I re-use them.

The disadvantages of them is the tall size makes them too tall for smaller frames, the small opening on top makes them slower to fill, and they are too tall to be able to fill them in some smaller sinks. But when bike touring, I am not in as much of a hurry. If you also had a small bottle, and had to fill the bottles from a small sink, you can transfer from the small bottle to the tall ones.