Men’s size large! Meant to fit slim and fitted to wear under other clothing. Our Men's Classic Thermal Merino Base Layer Colorblock Crew features 100% responsibly sourced Merino wool made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance. With shoulder panels and a flatlock seam construction, this base layer brings consistent comfort, as well as reliable warmth and durability, to winter hiking, running, and skiing. Slim Fit Garment weight: 280 g = 9.88 oz Knit in Vietnam: 100% Merino Wool. Exclusive Of Decoration Flatlock seam construction designed to minimize chafing Shoulder panels eliminate top shoulder seams 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance