Duct tape made my boots way too sticky


So, last year for Halloween, I dressed up as Chell from the video game Portal. I made long fall boots with duct tape and boots. This year, I’m gonna be a pirate, and I want to use the boots. I removed the duct tape but the duct tape left a lot of sticky stuff on the bottom of my boots. How do I remove it?


Hmm well here’s some screen shots I found (lol cause Idk how to add a link!)