DuPont Sorona® is a partially bio based polymer (37%) derived from annually renewable plant sugar and oil based TPA.

A life cycle assessment published by DuPont indicates that the production of DuPont Sorona® fibres has a 60% lower carbon footprint than nylon 6,6, an alternative polymer [1,2].*

* Note that this is a comparison of polymers at the factory gate. The overall environmental implications of producing clothing from each material will depend on subsequent processing, use and disposal methods.