I had to start wearing birks because I had plantar fasciitis and I was none too pleased about it, but even though I think they are not so trendy I do love them.  I had PF for over 2 years with pretty much no relief after seeing 6 different podiatrists, multiple cortisone shots etc....  surgery was the next option (no thanks) and everyone kept saying to wear birks-and guess what?  They did the trick, I now have 3 pair and wish they had trendy boots etc... These fit GREAT-I wear a size 7 and have a 38 in Birks and Danskos.  And of all the birks these are really cute!  I got black!