Choosing size you can consider the
next inner leg lengths of all sizes unisex and female:

Dames basic modellen met en zonder zakken

SizeConfection sizeSide lengthInner leg lengthWaist
XXS32-3494 cm80 cm62-72 cm
XS34-3698 cm85 cm66-74 cm
S36-38101 cm86 cm68-82 cm
M38-40104 cm89 cm70-86 cm
L40-42106 cm90 cm74-88 cm
XL42-44114 cm96 cm78-94 cm

Unisex basic modellen met en zonder zakken

SizeConfection sizeSide lengthInner leg lengthWaist
XS44-4698 cm76 cm62-80 cm
S46-48102 cm79 cm66-86 cm
M48-50108 cm84 cm68-90 cm
L50-52114 cm87 cm72-95 cm
XL52-54119 cm92 cm78-98 cm
XXL54-56123 cm96 cm80-102 cm

The pants are made by hand so small differences can occur in the lengths and widths of the pants of the same size and model