This bag is awsome.  I have had it for about a year now and it shows absolutely NO wear.  It has been to Australia, China and Mexico to name a few places.  The zippers are substancial and hold up to being pulled on. It is made of heavy canvas and huge clips keep this baby closed. This bag will be over your weight limit if you cram it full with clothes and shoes, I always leave the expansion zipped on the way to my destination so I have room to bring things back!  I am so glad I replaced my American Tourister bags that the zippers are falling apart on with this one.  This bag doesn't hit the back of my legs or tip over when I pull it, so annoying when that happens.  I am shopping for the 26" matching piece and a carryon for the next trip down under.