The measurements are taken for both feet, and when determining the size the maximum parameter should be chosen.
Important: the measurements for high boots are taken at the moment when the feet are maximally swollen.
It should be taken into consideration that accurately chosen boots have the insole of 1 (cm) longer than the foot.
For example: for man foot of 25.7 (cm) long Russian size 41-42 would fit, with real insole length of 26.5-26.8 (cm).
The shoe width parameter should be considered only for non-standard feet. For example, for oversize foot, in order to predict the effect of tightness, 1-2 size bigger long boots should be chosen, or it’s better to look for models of 8-12 width group.