Boys New York Yankee's baseball outfit for baby boys and toddlers. Baby Boys MLB game day baseball outfit.  Sizes Newborn - size 4 available. Sizes over 18 months will be made using a shirt instead of a onesie. If you prefer a shirt to a onesie leave me a message stating that you want a shirt (for sizes 6/9 months - 18 months) and I will I make it.  All Teams are available, if you cannot find your team, you can purchase a different team and leave a message stating the team that you want or message me for a custom listing.