Tag says to dry clean. There is light discoloring on inner brand tag and inner material strip along that back inner section. I used a dryel bag to clean, but you may want to have it dry cleaned. 

Made in USA

100% silk outer with polyester lining

Elastic waist with tie

Smoke free home


Measurements are approximate.

Underarm to underarm: about 20.5"

Shoulder to hem: about  39"