Made with 89% LENZING™ Modal™ , a wood-based fiber produced from trees harvested from sustainable forests where 99% of the raw material comes from certified or controlled sources. LENZING™ and TENCEL™ are trademarks of Lenzing AG. Soft stretch sleep shirt. Notch lapel collar. Long sleeves. Button front. Piping detail allover. This product was made in a factory that runs the Gap Inc. P. A. C. E. (Personal Advancement & Career Enhancement) program. P. A. C. E. is our educational program that helps the women who make our clothes build the skills, knowledge, confidence & resilience needed to advance in work & life. .Learn more.here.