D is standard for men's size ,and B is standards for women''s size .Deer is the shoes that you will like.This shoes is using imported sandwich mesh fabric, the bottom is soft TPR (shock proof).Soles can be bent,curled,wear-resistant slip.It is comfortable and durable.People can wear it to go walk,hiking, beach playing, playing, dancing, jogging,running and so on. You feet need to have a pair of ventilated shoes.
