This feels so good on! This sturdy new pullover from Smartwool combines the brand's Intraknit fabric with high-tech accents to provide warmth where you really need it and mesh ventilation where you don't (the underarms!). It has a funnel neckline, with a set-in shoulder and long sleeves. The body is somewhat shrunken, with a kangaroo pocket in front and long, cuffed sleeves. 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.