COS Stores PortugalDesigned from organic cotton with added stretch for comfort, this sleeveless black midi dress is cut for a slim fit to highlight the silhouette. The ribbed finish and round neck create a versatile piece for the warmer months.- Organic cotton is grown from non-genetically modified seeds without chemical fertilizers or pesticides 95% Organic cotton, 5% Elastane / Machine washableBack length of size S is 49.80″ / Model wears a size S