For the men's models, this does not depend on the shoe size but on the weight. The bindings fit all lengths for shoe sizes 39-48.
I advise all my guests to take the shorter snowshoe size than specified and then, if they sink too much in deep snow, to use the extension elements (they can be fitted in a few easy steps and take up little space / must be bought separately, of course ;-)).ssen of course additionally to be bought ;-)) because when descending too long snowshoes reduce the comfort extremely (one does not bring the heel any more ideally under the body centre of gravity in the snow). For "knee patients" this makes a big difference!!!
Regarding weight See: https://www.msrgear.com/de...

Hope I could help. Hiking and snowshoe guide.

I can't answer that because I have 41 myself