If you don’t want to splurge, we recommend looking at this Jumpsuit. It's a wonderful piece for a reasonable price.
For something in the middle of the price range, consider this Sea Playsuit. While the price is very reasonable, this piece is an easy wardrobe update. Another good option is this Helmut Lang Romper. It's an attractive option both price and quality-wise. Check out this L'Agence Playsuit too! Great value for your money.
If you're looking at it like an investment piece, then what you're looking for is this Sea Playsuit. It's more expensive but worth your money. While you're at it, also have a look at this Thakoon Jumpsuit. Yes, this item is expensive, but it does not mean it's not worth it. And how about the luxurious Stella McCartney Jumpsuit? Yolo, right?