Arbor Men's Stacks T-shirt 60% Viscose derived from Bamboo/40% Organic Cotton Made in US Machine Wash 60% Viscose derived from Bamboo/ 40%Organic Cotton T-shirt custom made in Los Angeles, CA Extremely soft hand, regular fit Inside print, self jersey neck line Printed neck label Check out the many benefits of using Viscose derived from Bamboo http://www.arborcollective.com/2009/07