Tan, red, and blue two piece, tank top and jacket /shacket from the brand Fairfield Zio by Youngja. 

Blazer / suit style button up jacket with tank top that has a zipper in the back. 

It feels like a poly knit, its not thin. 

Great addition to your vintage collection that is very wearable and stylish.

No size tag so please see measurements taken lying flat- Top- Pit to pit-18" length-24" Jacket/ shacket- Pit to pit 19" Sleeves 21" length 26" Has stretch