Baby Rompers

Rompers are a one piece suit.
They can have a mix of any of the following:
  They can be long sleeved or short sleeved. 
  They can have no pants or short or long pants.
  They can be dressy or casual  
What they all have in common is that in the one piece baby suit, the baby's feet are exposed.  A romper can also be called a onesie (non-footed) or a jumpsuit.
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For a covered baby foot look for a sleeper or a footed onesie