Our team at SourcedBySab want to make sure you guys are choosing the right size. Its so important to double check measurements when buying vintage, because often preloved items might have been shrunk or altered by previous owners. We typically measure each piece lying flat, across the chest (P2P) and from the shoulder to the hem (S2H). We also give a recommended size in the description of each piece if we think the item doesn't match the label.