I have owned dozens of pairs of Chipa Slip-On's in various colors.  They are my go-to everyday casual shoe and always comfortable. Always 5 starts in my opinion, however, the most recent pair I received are extremely tight and narrow.  Are they knock off's?  Not sure.  I'll buy them again and see if I have better luck next time.  If not, I'll be forced to go back to my local surf shop and pay top retail :-(