I know I use wool for cross country skiing and cycling in cooler months. These clothes last several uses. When I try the same with plastic blends they need wash

I know I use wool for cross country skiing and cycling in cooler months. These clothes last several uses. When I try the same with plastic blends they need washing after one use. EDIT. Several uses closely spaced and the items are aired out between use. If you sweat all over some wool then leave it in ball for a week it will probably rot.