I love Birkenstock clogs but I'm a size 15/16 so they are close to impossible to find any bigger then 12/13. I bought these euro sized ones because I needed them and the fit sucked. Someone needs to let the Germans know to make more bigger sizes for American feet jeezI measure 5 1/2 C in a Clarks shoe shop, no swellings, lumps, bumps or bunions. However, I have a shallow foot - like a duck!The first pair of Birkis that I ordered were sandals and the 38M fits very well with the straps tightened to allow for the shallow depth of my foot but one toe is just touching the raised edge.I ordered the clogs in order to have something more suitable for the winter with socks. As I am a half size normally, it was difficult to decide which size to go for, 38 or 39. I tried the 38 Medium but it was so deep from top to sole that it fell off, I was able to keep it on my foot if I wore a loop pile walking sock. I re-ordered a size 39 Narrow thinking that it would give that slight bit of extra length For the toe but might be slightly smaller fitting. I kept these. I wear them with hand knitted 4 ply socks. They have been worn daily with very little sign of wear and will last a long time. No problems with keeping them on my feet but a loop pile walking sock is too much for them.Initially I was pleased with these clogs but in just two weeks they have stretched a lot and now feel too loose, which is annoying as I have very wide feet and ordered size 39N (narrow)! It has been an expensive waste of money as I cannot wear them or return.A big fan of Birkenstocks. However, these were advertised as normal fitting, but it was immediately evident, when I tried them on, that they were a narrow fit. This was confirmed by the labelling on the box.The shoes I received are NARROW FIT ! NARROW FIT !I buy it for Christmas gift. how you can do like this ?great product , as expected!