The  factory where sHEROes are manufactured in China is BSCI certified (for fair treatment of employees and safe working conditions) by  The FTA (Foreign Trade Association)

The process for manufacturing the fabric is shown in the image below:

Furfural is an organic compound produced from a variety of agricultural byproducts, including corncobs, oat, wheat bran, and sawdust. The name furfural comes from the Latin word furfur, meaning bran, referring to its usual source. Wikipedia

Xylose is a sugar first isolated from wood, and named for it. Xylose is classified as a monosaccharide of the aldopentose type, which means that it contains five carbon atoms and includes an aldehyde functional group. Wikipedia

Sodium sulfate is a byproduct of viscose rayon manufacture.  It can be recycled and used in paper manufacture.