With hesitation I purchased three pairs right off the bat. I like to buy in threes. Foot Happiness is an understatement with these socks. I traveled Europe in the summer in these and climb roofs in the winter. My favorite sock. The best thing is that they placed the toe box seam under your toes, Genius!! There is no seam nub to deal with. Don't second guess, buy a few pairs and be happy. PS I might wear one pair three days or so, with no smell and continued comfort.