We're Tom & Erin, and with no background in apparel design or manufacturing, we've ditched our careers, cashed out our 401Ks, and set out to reinvent men's underwear as they should be: fitter, fitter, and more stylish. That's how our patented Stay-Tucked Undershirt and revolutionary Tommy John brand were born. Tommy John's proprietary material performs like nothing you've ever worn. We adapt to real, moving, human bodies, so there's no bunching, rolling or riding. We're constantly improving our products, so you won't have to make any adjustments.