If you're looking for a climbing rope for an SRT system, Xstatic from Teufelberger is worth your attention
The special kernmantle construction maintains high tensile strength with minimum elongation. Xstatic provides better control for sleek descents and makes retrieval smooth and easy even with multiple redirects. With this rope you will focus your strength and skills where they belong: efficiently taking care of the tree, not worrying about climbing.
It is the perfect choice for both an SRT access line and work positioning line. It’s been successfully tested with all common hardware in the field by experienced tree climbers around the world.