I purchased this umbrella because I usually go to Washington D.C. a few times a month using public transportation (Amtrak, Metro, etc) and I've been caught in the rain numerous times.  I was looking for a very compact and light weight umbrella that I could always have with me just in case.  This umbrella definitely fits that requirement.  It is very small when folded up and does not take up much room in my bag.  In fact, most of the time I keep it in my purse so I always have it.  It unfolds into a pretty decent sized umbrella too.  My only complaint is that the umbrella seems kind of flimsy.  I've had this product for a few months now and each time I use it I wonder how much longer it will last. I think using it during a windy day will probably do it in.