Comments about the Command Messenger Bag
I got the small and it fits my 10x13" laptop as well as my 8 1/2" x 11" Rite in the Rain 9250T-MX Organizer perfectly. There is not much room to spare but I don't require any. The bottle holder is a bit small but will fit my 20 oz Yeti bottle. Time will tell how it holds up but I really like it so far.