Some design flaws, but I'll keep it.  First, the waist strap is exceptionally LONG.  Sure, you can tighten it up, but there is more than 2 feet of strap hanging out the end, and it's heavy strap (which is good), but I don't know if it can be cut off (I will try to cut it off and not make it look bad).  2nd, there is an RFID pocket inside - I had thought the entire pack would have been RFID, but just a small pocket.  This pocket is too small to hold a passport, so it will only work for credit cards.  That is a problem, because now I need a separate sleeve for my passport.  Third - the zipper clips into a ring - good idea to keep people from unzipping it, but it's too hard to clip on and off.  Would have been nicer if this was easier.