100% wool. The wool is non-mulesed. Even the finest of wool fabrics may show some pilling after repeated wear. Carefully remove any pilling by hand. We recommend airing the garment outdoors or steaming with an iron. If absolutely necessary, hand wash at 30° or machine wash on the wool cycle. Use a detergent specifically for wool. Reshape the garment while damp and dry flat. 4-5% shrinkage. Made in Xinchang, China.