I am Groot—and so is your new favorite pair of underwear. Featuring the galaxy’s most lovable hero in all his glory, the I am Groot briefs from Marvel include our ultra-comfortable Signature WaistBand, a breathable MicroMesh pouch, and four-way stretch. The PSD 7” Standard Length Briefs won't roll or ride and were built for everything, from everyday wear to your toughest workouts.