Woman’s Cynthia Rowley bathrobe size S/M cream colored like new

This Cynthia Rowley bathrobe has an inside ribbon tie and a wrap belt. It has a fold over collar and cuff look sleeves. It has two good size pockets on the outside. It’s medium length - about to the knees on me (I’m 5’2”). The tag says it’s size S/M. It is definitely oversized so I would lean toward the medium. It’s cozy and warm. It has never been worn.