This midi dress embodies the COS design ethos of lasting style. It's knitted from a luxurious blend of alpaca, traceable wool and recycled fibers that'll endure for years in your closet when properly cared for. The timeless sweater-style silhouette is shaped for an oversized fit and has a subtle mock neckline.- Long sleeves with thumbhole cuffs- Slit at the back for movement- Certified according to the Responsible Wool Standard, to protect the welfare of the sheep and their environment38% Alpaca, 38% RWS Wool, 24% Recycled polyamide / Dry cleanBack length of size S is 44.48"