Lenzing Debuts Tencel® Sun Fiber

Austria-based cellulosic fiber producer Lenzing AG has developed Tencel® Sun fiber, comprising
Tencel lyocell fibers with permanently integrated mineral-based pigments that provide ultraviolet
(UV) protection. According to the company, while conventional fibers lose more than half their UV
capabilities after the fabrics become damp or stretched, Tencel Sun fibers swell, providing
long-term protection. Lenzing reports that even after numerous launderings, the fiber maintains its
effectiveness, and has been shown in testing to attain a sunscreen level of up to 110 SPF.

Tencel Sun fiber is derived from wood and is 100-percent biodegradable. Suitable for high
activity and sports apparel, it also offers moisture management and skin-sensory properties and
exhibits reduced bacterial growth.

July 28, 2009