Rayon, modal, and lyocell produced from renewable cellulosic plants such as Bamboo, Beech trees, and pine trees. All three fibres are biodegradable. Lenzing Viscose and Lenzing Modal produced from sustainably harvested beech trees and Tencel from sustainably harvested eucalyptus trees. Eucalyptus proliferates without irrigation, pesticides, fertilisers or genetic manipulation; planted on marginal land cannot use for food crops.
The fibre yields
The fibre yields per acre from the trees used in the Lenzing fibre is up to ten times higher than that of cotton. Also, cotton needs up to 20 times more water. Lenzing gave organic certification and award for Tencel, which is not normal as regenerated fibre do not qualify for organic certification.