The Airknitx Boxer Brief checks all the boxes you should ... you can't go wrong with a classic like Calvin Klein." And while we all know Calvin Klein knows how to make a great pair of underwear ...

Although the Calvin Klein Cotton Classics Boxer Brief has a two-way fly—an interesting feature—our testers complained that this pair ran small. Worse, the material was rough and tended to chafe.

Much like socks and other wardrobe basics, the best men’s underwear should be comfortable ... says photographer Sam Schmieg, who wore Calvin Klein for a minute but, at this price and comfort ...