Review on 🏃 Water Belt Bag with Foldable Bottle Holder (Bottles NOT Included) Hydration Belt for Men and Women, iPhone Compatible Waist Pouch for Any Phone Size, Fuel Marathon Race Pack for Runners, Jogging Belt by Joe Michels

Running bag bottles are only useful for the bottle and nothing else. I assumed (wrongly) that this was a functional bag, expandable for use with a bottle if desired, but otherwise functions as a regular open-top bag. It only opens at the bottom, leaving a thin shoe bag that hangs low. So you're wasting the whole belt on something useful besides the bottle. Other cheaper running belts I've used have handy pockets on both sides in addition to a center pocket and additional elastic straps for you to attach keys or a small towel to. If I wasn't so lazy I would send it back.