If you're a bargain hunter, we recommend looking at this Equipment Romper. While the price is very reasonable, this piece is an easy wardrobe update. It's also worth checking out this Merritt Charles Romper. This piece is extremely popular and, just as importantly, not too pricey. Take a look at this Joie Romper too! Great value for your money.
If you're willing to splurge, then what you're looking for is this Michel Klein Playsuit. It's more expensive but worth your money.