100% wool. 50% of the wool is merino. The wool is non-mulesed and certified organic. The dyeing process is certified. 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 Dongguan, China.