Official size chart of Birkenstock... - Cheap Birkenstock Ph | Facebook
Birkenstock | Shoes | Mens Birkenstocks Graytaupe Size 43 In Birkenstock Sizing Mens Size | Poshmark
Fit check? They feel good but according to Birkenstock sizing guidelines I need 10 mm at the toe and it's about 5mm both front and back. : r/ Birkenstocks