Tear Mender on the back half, where the strip is wrapped on the braid; Super Glue on the front half where it’s wrapped on the hook shank. Here’s a nice video on construction https://m.youtube.com/watch?v=3HsdC9ZiQMU
Borrowed one of my son’s old batting helmets for protection when I cast it. Sorry it took so long to reply; been out fishing.
Flexible and, supposedly, waterproof; I plan on losing them to hordes of hungry salmon and leopard rainbows before I find out if it truly is waterproof (lol).