Crafted from 90% mulberry silk for luxe feel, and 10% spandex for a little stretch 19mm weight for a premium drape and hand-feel Covered button down front placket with non-detachable bow tie Long sleeves, functional button at the cuff This material is certified by OEKO-TEX Standard 100 (Certificate Number: SH015140381) which ensures that no hazardous substances are present Produced in BSCI (Business Social Compliance Initiative) certified factories which aims to improve working conditions throughout the supply chain Made with care in China