Meet the better-than-ever Men's Classic Thermal Merino Base Layer Crew. They've updated this 100% Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder seams and a flatlock seam construction helps prevent chafing. Add one of the best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking. Features Slim Fit 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance Fit updated to improve functionality while enhancing aesthetics Shoulder panels eliminate top shoulder seams Flatlock seam construction designed to minimize chafing Knit in Vietnam: 100% Merino Wool Garment Weight: 276 g = 9.74 oz Style:SW016349 SMARTWOOL Men’s Classic Thermal Merino Base Layer Crew