I'm totally disappointed in the size description. But this is not due to Birkenstock but at Amazon that do not get it fixed the quantities to be deposited properly when ordering. Now the problem: In Birkenstock there are two different Fußbettgrößen "normal" and "narrow". On the Amazon page for example. the sizes "38" and "38 normally" offered. I wanted to narrow footbed and select "38", since "normal 38" makes no sense to me. The delivery was fast again, but it was "normal 38" delivered. The description on the website is misleading and needs to be changed absolutely to avoid frustration.