The Shu One Button Girls Coat. There is no size tag, see photo for measurements

The Shu Girls One Button Coat. This little coat has no size tag. These are the measurements. chest pit-pit 14" length of sleeves 14" length of coat from shoulder to hem 20" opened front with one button closure at the neck. Based on measurements, approximate Size 5?. This coat is well made but has no size tag or care tag except a tag that says designed by Korea The Shu.