This rare and fascinating 18th-century undershirt has a provenance connected to King William III of England...

Mind you none of these are cheap. That said...brands covered are Calvin Klein, Hugo Boss, Step One, BDG, Seek, Alphx, Ermenegildo Zegna, Orlebar Brown, Whoop, and Esntls.

In this video, Jeff from The Style O.G. discuses the best underwear for different men's body types.

From early-1900s one-pieces to modern-day boxer-briefs, a century's worth of men’s underwear is tried on by our model. Watch as he dons each decade's signature undies (remember Joe Boxer?) and learn what’s been beneath men's trousers throughout the years.