1960s button back top with a high scoop neck and loose cap sleeves. There is a bow off center on the neckline and pleats to give the top a swingy fit. There are buttons down the back, and a snap at the bottom and the top. Material is likely nylon.
Looks like a modern medium to large, please see measurements for the best fit.
Measurements
Bust up to 40”
Waist 36”
Length 21”