100 wool. 50% merino wool. The wool is mulesing-free and certified organic. The dyeing process is certified as compliant with environmental standards. 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, handwash at 30° or machine wash on the handwash cycle. Use a detergent specifically for wool. Reshape the garment while damp and dry flat. Store horizontally. 4-5% shrinkage. Made in Dongguan, China.