Smartwool's best selling and warmest base layer just got a little more refined with an improved fit, chafe-free seam construction, and panels that offer more comfort.  Works as a single layer in cool weather or as a base layer in cold weather.

• Slim Fit
• Interlock knit provides ultimate comfort
• Crew neck with set-in sleeves
• Shoulder panels eliminate top shoulder seams
• Flatlock seam construction designed to eliminate chafing
• Knit in Vietnam: 100% Merino Wool
• Garment Weight: 255 g = 9 oz
• Color: Black