I chose the XS Scuba dive bag because it seemed to have beefier wheels than the other 10 brands at my LDS. Some were one compartment duffel style. Most have at least two outer fin pockets, and usually 1-2 smaller storage compartments. Mine included a separate padded regulator case with carrying strap that zippered inside one of the outer compartments. I use that case as a carry on item to include all my super expensive items, such as regular, dive computer and my octo/inflator. Fins, mask, wetsuit and BCD I checked in. When I’m traveling to a country where I feel my luggage is at risk of being stolen, I have another option instead of traveling with a bag that obviously carries scuba gear. I can easily fit all the same gear into an old suit case. Plus I bring along a lightweight mesh duffel with backpack straps that can easily be folded up in the case. Hope this helps.