My kids have the speedo team backpacks for swim team, but they only bring these to practices/meets and I don't bring anything those times. When we go to the pool for fun, they leave their speedo bags at home and I have a bag we use for everyone's things. It also folds relatively flat for travel. Its this one:
https://www.amazon.com/Dejaroo-Mesh-Beach-Bag-Lightweight/dp/B07MTYP1XG/ref=sr_1_3?keywords=mesh+beach+bag&qid=1560886234&s=gateway&sr=8-3

Anonymous wrote:I saw the recs for having separate pool bags per family member on the other thread. Any specific recommendations? I tihnk we're doing it wrong!

What? Why? So you can have six things of sunscreen at the pool? And six different ways of keeping food and drinks cold? If your kids are older I could see making them responsible for their own bag, but otherwise what's the point?

We have one - the Lands End big bag with a zipper on top. It's great.