Avril Gau's sizes are expressed in “Point de Paris” (Paris size's). The table below shows the conversion between the Avril Gau sizes and the Italy, US & UK sizes.
In case you have a doubt about your Avril Gau size: measure your foot in cm, add 1 cm and divide the result by 0.66.
Example : If your foot measures 24 cm, (24 + 1) / 0.66 = 37.88 - select the size 38.