If you're in a thrifty mode, take a look at this Jumpsuit. It's a great piece for a reasonable price.
If you're looking for a good deal, we've got your back with this Sea Romper. This piece is likely to become a total wardrobe staple. Another good option is this Helmut Lang Romper. It's an attractive option both price and quality-wise. Take a look at this L'Agence Romper too! Great value for your money.