THERE ARE many factors that go into the making of spring outfits for men, like stocking up on sleek jackets, cozy sweaters, and, of course, the ideal pair of trousers—while in no particular ...

The best undershirts work to keep you cool, comfortable, and are the foundation of every outfit. We tested a bunch so you don't have to. Check out our favorites from Calvin Klein, Hanes, and more.

Jian DeLeon, the men’s fashion director at Nordstrom, agrees. “A great transitional wardrobe is about having go-to versatile pieces that work with each other,” DeLeon says.