This bag is nice because it stands up firm by itself (rectangular shape) & you can jam a lot of stuff in it.  I was able to include inside : swim trunks for hubby, swimsuit for me, swim shirt & swim pants for 2 kids, change of clothes for 2 kids, water shoes for 2 kids, and a swim vest.  All the while, jamming some swim diapers & sunblock in the outside areas.  Mesh all the way around.  No zippers.  Gave it 4 stars instead of 5 due to the straps - not incredibly comfy on the shoulders.