^ this is not entirely correct, Bindings are one thing as they do not directly interact with the body, Boots however do. Woman's calf muscles come lower down the leg then that of a mans. Because of this woman's boots generally all cut lower and have more room at the back of the calf. Woman's feet are also generally (not always) different shaped to mens. Because of this woman's boots often have a wider heel or slightly higher instep.
Now obviously just like men there are many many different shapes of feet and legs, with woman, so sometimes a mens boot my work better, however generally it will be best to start with a woman's boot as this will generally give the best starting point for a good fit.