This new style from Smartwool looks as good as it'll make you feel on chilly days! It combines the brand's signature thermal merino wool with a new merino waffled rib knit. It has a drop-shoulder construction, with a relaxed funnel neckline and a deliberately boxy silhouette. The fit is rather relaxed; if you are used to sizing up in Smartwool's base layers, we suspect your regular clothing size will be just fine in this style.