Snap your little peanut into the snuggly cuddly goodness of our adorable Fitted Coverall. Sizes 9-12 months and up follow approved "snug fit" guidelines for children's sleepwear not treated with flame retardant. We suggest sizing up in this style. It is very possible for a 6-9 classic fit coverall to run bigger than a 9-12 fitted coverall. Please keep this in mind when making your size selections.