Left (I believe) is a discontinued pascal Dr. Martens, right is Solovair derby. I am trying to find something similar to the left one: more streamlined, wraps naturally around the foot whereas the right one expands outwards and looks like a clumpy boat.
[Hentai Femdom JOI AI with Futa Support] Virtual Succubus March Update 0.27 | Procedural Task Expansion | Customize your own stroking type combinations! | PC/Android Demos Available