Float-tube fishermen, are you tired of losing a fin? Nylon web straps fasten around your ankles and connect to your fins. Fully adjustable with buckle and hook-and-loop closures. Per pair.
It's a nice concept, but I just lost a fin today. A fin I'd had for over twenty years that was customized by my late father. The cheap tether string broke (The FIRST time I used it by the way). The top part of the tether seems okay. I may keep these, but I'm get some straping and quick release buckles to attach the fin to the tether. Were I you, I'd just fashion my own out of web strapping and quick release buckles.
These tethers work as well as the more expensive models. Keeps user from losing an (expensive) fin and you never know they're there until a fin comes off, and believe me they do!