I have had one of these in espresso for two years and have beat the heck out of it and it still looks exactly like the day I received it.  It has never malfunctioned.  I went bag shopping a few weeks ago to see if I could find anythng better, spent many days and many hours looking over hundreds of bags at dozens of stores.  I ended up buying two others but after a month with those I've come back to this one.  In sudden panic that this bag might not be made any more I just ordered another just in case my current should ever fail.  I'm so glad I found it still available on Amazon.