Soft floral jumpsuit with low neckline

Adorable capri length spaghetti cross-back cream and floral jumpsuit. No material tags but feels like a soft silk/cotton/rayon blend. Neckline dips low so best to wear with a bandeau underneath. Size M but fits like a US small (I am a women’s 4-6 bottom and it is snug on me). Gorgeous piece - I wish it fit me!