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. Short sleeves. Button front. Piping allover. Certain styles have allover prints. Straight silhouette with a relaxed fit. Hits at the hip. Models wearing Gap size S or 4 are 58/172cm511/180cm with 23. 5/60cm26/66cm waist and 33/84cm38/97cm hips. Models wearing Gap size XL or 16 are 58/172cm511/180cm with 34/86cm36/91cm waist and 45/114cm50/127cm hips.