Size M but can easily be labeled a OSFA (S-XL) It can even be worn by and is perfect for a growing belly of an expectant mother Very versatile, comfortable, high quality and can be dressed up or down with accessories. Soft and flowy with adjustable straps and a split down the center, flattering to ANY silhouette. Also nicely with waist cinchers for an entirely different & alternate look 🖤 Mint NWT