The EDELRID Tommy Caldwell DuoTec 9.6mm Pro is a high-performance single rope developed with professional climber Tommy Caldwell. Its robust construction with a high sheath proportion makes it a durable “workhorse” rope, ideal for big wall climbs and intensive projecting. The DuoTec bi-pattern provides a permanent and highly visible middle mark, while the Eco Dry finish keeps the rope water-repellent and dirt-resistant without the use of harmful PFCs.