One size fits all. Could be worn alone or over a cami or tank. Soft, flowing cotton/rayon blend considered to be the cashmere of cotton. Dairi is durable, soft, draping one-size-fits-most brand. I have pieces that are 20+ years old! This one has literally never been worn. I bought it for a special occasion with the skirt I’ve listed and it was too much for my small stature. With some pieces, I do wash on gentle cycle, hang dry or dry on delicate for a bit and then throw in the dryer to assure softness. But this piece has never been washed or worn.