research

CRG Highline incident and consequences on webbing lifetime recommendations On April 20th, 2024, there was a mainline and backup failure at Cosumnes River Gorge (CRG), California, United States of America. The failure occurred during a spontaneous tandem session, with the main snapping during a leash fall and the backup failing as it engaged. Both highliners fell but had only minor injuries given the circumstances. Up until now the lifetime recommendations for non-PES (Polyester) and non-PA (Polyamid/Nylon) webbings were summarized as "high-tech/low stretch" webbings in our highline gear standards. Due to the CRG incident the ISA Safety Commission decided [...]

Effects of UV on breaking strength of polyamide and polyester highline webbing Members of the ISA Safety Commission have performed comparative two year degradation tests of some commonly used webbing materials used in  highlining . These tests were performed at extreme weather conditions in a high alpine environment to evaluate the highline webbing safety standard ISA:41 and to provide further data for evaluating highline webbing lifetime around the globe. The high-altitude Jungfraujoch research station offers a perfect venue for installing an array of frames with different webbing samples for a long-term, combined weathering and solar radiation study. Not [...]