You might get away with "Onesies" if you actually use Gerber brand clothes to make your product. You'd need the Gerber logo tag in the product photo and even th

You might get away with "Onesies" if you actually use Gerber brand clothes to make your product. You'd need the Gerber logo tag in the product photo and even then they probably won't like it. For alternatives you can go with one-piece, (baby)jumpsuit, or rompers. Creepers is the term everyone uses in the UK. Source - Too much time dealing with this exact naming issue.