COS Stores PortugalCrafted from 100% cashmere that’s luxuriously soft, this classic navy sweater is designed for a regular fit with relaxed shoulders and neat ribbed trims. – Round neck, long sleeves- Certified by the Good Cashmere Standard, to ensure our cashmere is fully traceable 100% GCS Cashmere / Machine wash coldBack length of size M is 26.37″