Lenzing:
It's a branded name for viscose, a regenerated cellulosic fiber in the family of rayon, similar to modal, acetate, cupro, and lyocell. Lenzing EcoVero fabric is often used in the fashion industry to make affordable clothing.
EcoVero™ is a more sustainable viscose made using sustainable wood from controlled sources: FSC (Forest Stewardship Council) or PEFC (Program for Endorsement of Forest Certification Schemes) certified in Europe, instead of bamboo or eucalyptus, which is commonly used in normal viscose production.