Yes, You Need to Wear an Undershirt. No, a Regular T-Shirt Won’t Do. There’s an art to a good base layer. A guide to the materials and cuts men should look for—and how much they should spend.

A sweat-proof undershirt can prevent unnecessary pit stains. Based on fit, cut, and material, we have rounded up the best undershirts for men.

Our most recent indulgence comes by way of underwear brand Tommy John in the form of a "second skin" crewneck undershirt that comes with a $40 price tag attached. A little tough to swallow, perhaps, ...

Best V-Neck Undershirt For Men: Tommy John Cool Cotton Stay Tucked Deep V-Neck T-Shirt Best Black Undershirt For Men: Jockey 100% Cotton Crew Neck Undershirt ...

The best undershirt brand for men that we’ve found is Tommy John. The brand’s signature ‘Stay Tuck’ design makes it practically budge-proof, while its slim fit provides a smoothing layer ...

The Numi Signature Undershirt (left) has a deeply plunging neckline and a longer torso, so it can be tucked in; the Numi Square Neck Cap Sleeve Undershirt (right) is shorter (it landed just below ...