If they aren’t already in your wardrobe, undershirts should be required. They're as foundational as jeans, timeless as a ...

It works well under fitted clothing but doesn’t feel restrictive. Cotton-blend undershirts with a little stretch (spandex or elastane) excel here. Looser and more breathable, offering more ...

The underwear is made from a cotton and Spandex blend that is moisture-wicking and breathable, according to the brand. The boxer briefs are also tag-free to avoid skin irritation. This set has a 4 ...