Tommy John is proud to be the first company to design an undershirt that stays tucked in, while avoiding the EFG™ (excess fabric gut) appearance. Tommy John is a true undershirt (not a tee shirt). With its patent pending Tailored Stretch™ Technology, it ensures the undershirt never rides up, bunches, or comes untucked. Tommy John is designed to be invisible under clothes, eliminate bulk and will move with your body. It will make you forget you’re wearing an undershirt (hence the Second Skin name).