XS- This size is designed for women up to 165 cm tall who normally wear a size 32-34 pant.
S- This size is designed for women between 166 cm and 174 cm tall who normally wear a pant size between 32, 34, and 36.
M- This size is designed for women 175 cm or taller who wear a pant size 32, 34, 36, 38, or 40. Or for those who are shorter than 175 cm but wear a size 40.
L- This size is designed for women 178 cm or taller who wear pant sizes 42 and up.