Favorite water bottle in a Pilot??

[Brintoul]

I use a medium size Swell. It sticks out of the zip on my Co-pilot but it's fine in my Pilot. I have a Kleen Canteen but it leaked in both bags, seeping though to the side pockets so it doesn't get to ride in them anymore.

[ZoeBios121]

A wide mouth un-insulated 40oz Klean Kanteen fits snugly. The classic, being taller from the neck and cap design, would fit but unable to zip but is the same width. I had a classic until it was lost then replaced it with the wide mouth version.