I purchased a pair of new wading boots from LL Bean about 5 or 6 months ago and phoned them to inquire as to what size to order. The very helpful gentleman I spoke to said they had started having their wading boots made in a larger size than a "street shoe". I ordinarily wear an 11 or 11 1/2 shoe; he suggested I order the wading boot in size 11. He was right; it fit perfectly over my waders. Moral: good idea to check with the folks you're going to buy the wading boots from and get their opinion.
George