If you thought that you couldn't wear long underwear indoors, think again! Tommy John's SleekHeat™ Long John Tops have revolutionized the thermal underwear market by providing a garment that can be worn indoors and outdoors and adjusts to your body's temperature needs.
Our SleekHeat™ Long Johns are the perfect Winter base layer for working professionals. In addition to being super thin and lightweight, our smart SleekHeat™ fabric will help to regulate your temperature inside and outside by providing heat only when your body needs it. Available in our long sleeve Crew Neck and V Neck styles and infused with our Tailored Stretch Technology™, these long johns will stay tucked in all day and have you feeling like a million bucks.