these are sport and yoga asics leggings with a logo so worn off I peeled it off completely but there is still some visible, white-ish residue, some kind of adhesive I assume.
I found https://www.wikihow.com/Remove-Prints-from-Clothes but I don’t know if any of those solutions would work to completely remove the residue, plus, I’ve never done this, so asking for your advice.
In my younger days I worked with fire equipment and there were the type of decals applied to them that would render the information provided by them ‘VOID’ if the decal was tampered with. Needless to say that the adhesive from these was a pain in the ass to remove. We had a steady stock of the aerosol “Lift Off” (Motsenbocker’s) and that stuff worked great.