Big news over here — our bestselling flannels now have stretch (!) Just another reason for this to be your favorite shirt of all time. Wear it alone, or size up and wear it as a second layer. There are no wrong choices here. Cotton and Spandex team up to create a warm flannel that's soft, cozy, and has stretch for even more comfort. No more stiff shirts over here, folks. Dennis is 6'2", wearing a Medium, and despite having a fear of needles is covered in tattoos.