Andrew Z.wrote a review of Birzman Packman Travel Bottle Pack on July 8, 2019
Familiarity: I've used it several times
There is a significant problem with the design. There are only two velcro straps, both of which are near the top of the bag: one connects to the stem and one connects to the handlebar. There is nothing to strap the bottom of the bag to the bike, which means that the whole bag will swing like a gymnast doing a front lever.