Don't hesitate to get in touch if you require further assistance on sizing.
In addition to sizing the gaiters based on calf circumference, we have found that sizing them based on the measurement from the centre of the ankle to the centre of the knee cap when standing is helpful.
less than 40cm: XS
40 - 42cm: S
42 - 44cm: M
44 - 46cm: L
greater than 46cm: XL
Given natural variation or calf shapes and sizes, you may find that using the two methods give different recomemendations. If this is the case, meet half way. If you're still unsure, we can send you two sizes and you can return one.