I'll second (and third)
@outofofficebrb recommendations for North Face
I've been using a base camp duffel for 13 years, not only for dive gear, but sometime test equipment and tools for work (as well as clothes occasionally) It gets checked, and it on an aircraft 15+ times per year. I've never had anything damaged and the bag itself has had no failures
Even scuff marks wash off. I also like that it has grab handles on ends as well as top, so easy and quick to haul off a conveyor.
I've never had gear damaged in 10 years being in soft bags
I have a room full of bags, which haven't made the grade for whatever reason. My go to travel set is as follows:
North Face 30" rolling thunder - take all my dive gear except PDC
North Face Base Camp duffel for clothes
And North Face backpack which holds all my electronics etc and goes in the cabin
I find this combo works because if I'm having to haul my bags down a street or a dock (often the case in Asia) I drag the roller with the back pack attached and wear the duffel on my back.
Also having multiple smaller bags, rather than one large is easier to pack them in a cab, especially small size vehicles in Indo etc And of course at the destination, one goes to the dive centre or deck, the other to the room or cabin (On some live aboard's I do take a mesh bag, decant all my gear into it at teh Dive shop and leave my rolling thunder there to save space
Some of my previous bags (dedicated dive or not) were great inside the airport with smooth floors or where you have trolleys, but a nightmare outside. My North Face choice has been driven by practical experience of other bags, and not because I'm a Brand Fan boy other than their gear works for me