Sewing Yarn Natura Cell is made of 100% cellulosic fibers and is Cradle to Cradle Certified™ Gold. It is 100% biodegradable and safe for biological cycles. Of course, it also meets the standards of Oeko-TexTM Standard 100.
Natura Cell is available in the strengths:
| STÄRKE | TEX | tear strength | meters per bobbin |
| 12O | 27 | > 7.0 N | 5000 |
| 70 | 40 | > 11.0 N | 5000 |
| 50 | 60 | > 15.0 N | 2500 |
| 30 | 90 | > 23.0 N | 2500 |
other strengths on request