Imago with a Water Bottle Pocket = ID?

[Rhiannon]

My Imago is just about the perfect size for everyday carry between work, volunteer gigs, and visiting my sweeties, but I feel keenly the lack of a water bottle pocket, so I usually use my Ego even when it's a bit too big for my purposes. I've just noticed that the ID has a water bottle pocket, so I'm wondering: how does it compare in size and capacity to the Imago?

It looks like there aren't any other TB bags with an external water bottle pocket other than the Egos and the backpacks, but if I'm missing something, please let me know!

[Tizi]

They list sizes on the store site. I decided to get the ID for that very reason, wanted the water bottle carrying option. I had to order it back-ordered though.