A footloop that is both simple to use, easy to adjust while resistant and elastic.
The Klik N'Ka from FTC feature micrometric quick release buckles on both top and bottom straps. This allows for easy one handed tensioning or release
FTC Klik N'Ka Tree Climbing Spikes
FTC Argiope EVO Berry 11.7mm 35m Climbing Rope - Gustharts
The REECOIL FOOT-LOOP is a low profile hard wearing foot loop, for SRT (Single Rope Technique) ascent. Designed to be used with a clip on knee
Arborist FOOT-LOOP for SRT tree climbing
How to climb SRT / SRS, beginner tree climbing
How to build an SRT Knee Ascender for Tree Climbing
ISC Apex Rope Wrench — Bartlett Arborist Supply
JRB Garda Hitch Footloop, Single Loop Variant
How to climb SRT
Climbing gears for arborists - FTC Tree