There is no industry regulations which stipulate what is a 'big'
or a 'small' shoes size for a man or a lady. That, however, does
not mean there is not a general perception amongst consumers and
retailers as to what a large or a small shoe for is. For ladies
you should expect the following sizes to be described as big or
BIG - Eight, Nine, Ten (Adult)
SMALL - One, Two, Three (Adult)