100% cotton. Corridor Riverside SS Camp Shirt in Natural. Worn only twice! Note: One small loose thread on the back of the shirt. From the website: This piece was produced in Madras, India, in a workshop that has dedicated 3 decades to high quality fabrics, crafted in working conditions of the utmost dignity. Melding the new (Japanese sewing machines) with the old (hand embroidery, hand loomed fabrics, natural dying) results in a product both timeless and contemporary.