COS Stores PortugalCrafted from boiled merino wool for a felted feel, this black T-shirt dress is cut for an oversized fit with dropped shoulders and raglan seams for an effortless silhouette. – Ribbed, crew neck- Wide, short sleeves- Certified by the Responsible Wool Standard, to protect the welfare of the sheep and their environment 100% RWS Merino wool / Dry clean only Back length of size S is 40.55″