Sizes Guide

Step 1 : Measure your foot

- Wearing only socks, stand on a sheet of cardboard against a wall.
- Be sure to keep your heel against the wall and your foot flat on the sheet.
- Draw a line at the tip of your big toe.
- Measure the distance in cm between the edge of the sheet and the line (round up to the millimeter).

Step 2 : Determine your shoe size

- Using the grid below, you can accurately determine your shoe size.

Note: If you are between two measures, it is recommended to take the next size up.
Example: A foot that measures 26.8 cm is between a shoe-size 41.5 and 42, it is therefore advisable to take a shoe size 42.

On the John Foster website, we systematically communicate French sizes.

cm FR UK US IT
  38     37
  38,5     37,5
25 39 5,5 6 38
25,4 39,5 6 6,5 38,5
25,7 40 6,5 7 39
26 40,5 7 7,5 39,5
26,4 41 7,5 8 40
26,7 41,5 7,5 8 40,5
27 42 8 8,5 41
27,4 42,5 8,5 9 41,5
27,7 43 9 9,5 42
28 43,5 9,5 9,5 42,5
28,4 44 9,5 10 43
28,7 44,5 10 10,5 43,5
29 45 10,5 11 44
29,4 45,5 11 11,5 44,5
29,7 46 11 11,5 45
30 46,5 11,5 12 45,5
30,4 47 12 12,5 46
30,7 47,5 12,5 13 46,5
31 48 13 13,5 47
31,4 48,5 13,5 14 47,5
31,7 49 14 14,5 48
32 49,5 14,5 15 48,5
32,4 50 15 15,5 49

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