The shoe sizes displayed in the shop are either UK sizes (i.e. 6 / 6.5 or 7) or FR sizes (i.e. 42 / 42.5 or 43).

Men's International Sizes
uk567891010½1111½12131415
fr3838½394040½414242½434444½454646½4748½49½51
de3838½394040½414242½434444½454646½4748½49½51
us67891010½1111½1212½13141516