The generic name for a biodegradable fiber that’s made out of treated wood pulp. Lenzing’s branded lyocell is known as TENCEL™ and is a preferred man made cellulosic because it comes from renewable sources, is biodegradable, and is made in a unique closed-loop system that recycles 99.5% of the solvent used. TENCEL™ is made from wood originating from FSC or PEFC certified forests. Unique physical properties lead to their high tenacity profile, efficient moisture management and gentleness to skin.