Just about everyone who's ever tried on one of Smartwool's Merino 250 baselayers has fallen in love with the soft comfort, delicious warmth, and hop-to-it breathability of the fabric. Now you can bring that feel and smarts to your every day. So when it's on the colder side but you need more than a tee-shirt look, try on the Merino 250 Button Down Long Sleeve. Made with an interlock knit and our heaviest weight Merino, this shirt delivers the goods. A chest pocket ups the ante. This could well become your winter go-to.