I'm looking to order some new Birkenstocks and looked up ancient orders to see what size I've had before. I was surprised to see it was size 39 (twice) as I'm a 6.5 - 7 and Birkenstock has 39 down as 5.5...I don't remember ever wearing a 5.5, at least not since my early teens!
Have my feet just got bigger since having two kids (quite possible!) Or is the Birkenstock sizing a bit off?!