Converted and edited from a pair of legwear from Crusader Kings III. 20+colors. Actually shoes and "binds", as the habit of legwear was at the times. Should work also with other pants and legwear, if they follow the Sims 4 system for pants + boots.
For both female and male sims, female adult has its own adapted mesh.
The kids, infants and toddler's versions get their textures from the adult male version. All merged in one file, if you want to edit or remerge, unmerge first.
I also made an "Only shoes"-version:
Same with these shoes - kids, infants and toddler's versions get their textures from the adult version. All merged in one file, if you want to edit or remerge, unmerge first.