Although sizing varies from one brand to the next, it is safe to say that current fashion apparel tends to run smaller than your average clothing. Of course Black Wagon apparel is current and fashionable, so expect that our lines run a little small. We always recommend purchasing items in the larger size whenever you are trying to decide between two sizes.
Please note that most sizes correspond to age, so a size 4, fits a 4 year old and so on.