NWT Athleta Wind Down Sleep Top Black Size Extra Small New with tags - tag marked through to prevent store return Chest 17" across Length 21.5" FOR: Lounging, relaxing, and a good night's sleep FEEL: Waffle texture is lightweight and soft FAVE: Henley front button placket Polyester/Modal/Spandex BREATHABLE: Airflow moves easily through the garment SUSTAINABLE: Modal is a fiber that is produced from European beech trees harvested from sustainable forests where 99% of the raw material comes from certified or controlled sources.