Yeah just looks like normal pre-wrap, every physio has it in their kit:
https://www.amazon.com/Sports-Pre-Wrap-Athletic-Tape/dp/B07C1F5KLK/ref=sr_1_12?keywords=pre%2Bwrap%2Bsports%2Btape&qid=1578818762&sr=8-12&th=1
Not very strong but surely enough to keep a guard in place while a sock is over it.