Comments about Deep See Deep See Excursion Roller Duffle:
This thing holds up like a champ. Mine has been all over the world, stuffed full of gear, and the zipper has not once bound up or broken.
The best part about it is that it weighs about four pounds - seriously. Try finding a sturdy roller bag made by a competitor for under ten pounds - this is a real concern now that airlines are clamping down so severely on weight limits.
The bag is made of pretty sturdy cordura - it's not indestructible, but it's pretty well made. I did manage to scrape some tiny holes in one end of mine after I dragged it through a gravel parking lot, but it wasn't anything duct tape couldn't fix.
I've finally just about worn mine out - after four years of heavy use - so I'm here to buy another one!