International size

French size

Jeans 
waist size (inches)

Italian size

UK size/US size
chest size (inches)

Shirts (collar) 

cm

inches

XXS

38

27

44

32

35 - 36

13 ½  - 14 

XS

40

28 - 29

46

34

37 - 38

14½ -15

S

42

30 - 31

48

36

39 - 40

15½ - 15¾

M

44

32 - 33

50

38

41 - 42

16 - 16½

L

46

34 - 35

52

40

43 - 44

17 - 17½

XL

48

36 - 37

54

42

45 - 46

17 ¾ - 18

XXL

50

38 - 39

56

44

47 - 48

18½ - 19

XXXL

52

40 - 41

58

46

49 - 50 - 51

19 ½ - 19 ¾ - 20