Larry H.wrote a review of Lezyne Flow Caddy on April 25, 2019
Full disclosure, I do not own, nor have I used this item. If Lezyne made a taller version I'd give it a try because I like the wide mouth design. Currently I use a 24oz water bottle for this which is ~180mm tall vs. the 135 listed for this. In the water bottle I can also fit my mini-pump which would not fit in this. The only real disadvantage of the water bottle is that you don't have straight sides all the way to the top so it can sometimes be a bit of a chore to get stuff out depending on how you've packed it. Great concept, I don't like a stuffed jersey or seat bags but since I do a lot of long distance solo riding I do use a tool roll under my seat (Silca, loaded) with CO₂ cartridges, inflator, tools, etc. and mini pump and tubes in the water bottle. You lose a water bottle spot but for 90% of the riding I do this isn't much of an inconvenience.