BSN Medical Cover Roll Stretch,... https://www.amazon.com/dp/B000GCRWNA?ref=ppx_pop_mob_ap_share
This is the tape I use, it's pre-scored so I don't need label backing material to make tapes. 3M tape has a stronger adhesive, but it gave me a rash. I've been happy with this tape
It's normally around $6.50
https://www.amazon.com/dp/B000GCRWNA?ref=ppx_pop_mob_ap_share
This one is similar to mefix, but is pre-scored. I make tapes without label backing material with it