Wool will stink while worn. After washing it will lose that stench And not smell again until you are actively sweating in it. Synthetic after many uses develops a residual odor that returns no matter what detergent is used, so that within seconds of the material being warmed by body heat it smells as though I have been hiking all day despite being just washed....
"In the beginner's mind there are many possibilities. In the expert's mind there are few." Shunryu Suzuki