Polyester This jumpsuit runs small, we strongly suggest sizing up. Our size is Asia size. Bust[XS:33" S:34.7" M:36.2" L:37.8" XL:39.4" XXL:41"] Waist[XS:26" S:27.6" M:29" L:30.7" XL:32.3" XXL:33.9"] Comfortable leisure Loose romper playsuit Material :Polyester