According to Statista surveys, the average
shoe­size for women is
split evenly between Shoe Size 38 and Shoe Size 39. For men,
the most common shoe size at 19 percent is Shoe Size 42. For both men and women, the average foot size has hardly changed
in recent decades despite increasing body size. On the other hand, a slight tendency towards wider feet can be observed
for both. If this trend continues, shoe manufacturers will have to increasingly offer different shoe sizes in the future
by taking into account the width of the foot.