Vintage Teal Corset Style Lingerie

This is a vintage piece, made in the USA. It’s sized medium but runs small. The front is a tie release so it can be adjusted to fit a wider range of sizes. The breast cups are smaller; tag says B20. It is shaped like a corset but does not have the corset boning. It does have underwires. There are some bleach marks mostly on the left side, which are pictured.