Permethrin treated tights?

[NHAero]

Increasing cases of alpha gal here on MV have me wanting to up my tick repellent game from permethrin treated socks. I can't find tights that come pre-treated. Insect Shield has women's leggings but no comparable product for men, and those are 90% cotton 10% spandex so I wonder how they keep their shape.

Any pointers? I can treat my own with permethrin solution but that doesn’t last as well as factory treated applications.