Material: 100% mulberry silk Weight: 19mm fabric weight for a premium drape and hand-feel Hanging hook and inner ties Dyed without hazardous chemicals in a dyeing mill that meets bluesign® standards. Bluesign® helps factories operate more efficiently by reducing overall water, energy, and chemical use while putting safety measures in place to help protect workers from exposure to chemicals This material is certified by Standard 100 OEKO-TEX® (Certificate Number: SH050127759) which ensures that no hazardous substances are present Worn a few times and washed according to instructions