Measure your waist and choose the size that most closely match you. The waist is elastic to fit. So for example, size M (77 cm) adapts perfectly to waists from 75-79 cm.
Size S (34-36): Waist 68 cm (26.77in) / Length 100 cm (41.54 in)
Size M (38-40): Waist 74 cm (29.13 in) / Length 100 cm (41.54 in)
Size L (42): Waist 86 cm (33.85 in) / Length 100 cm (41.54 in)
Note: Shown measures are used to choose the correct size but skirts not necessarily have the same ones.
IMPORTANT: you may not have the same size on all models of skirts. Please check your size in each model.