Organic cotton ring-spun resistant.Cotton comfort and silky weave finish.Certified organic cotton.100% organic ring-spun pique cotton (Heather Grey: 90% organic ring-spun pique cotton / 10% viscose). Collar and sleeve edges in 1x1 rib. Band of cleanliness. Button placket: two tone-on-tone buttons. Side seams. B&C No Label" system: no brand label for a perfect rebranding. Certified STANDARD 100 by OEKO-TEX®N° 1501003X, Centexbel.