SKU: SW016355F2 Smartwool Men's Thermal Merino 1/4 Zip Base Layer

We've updated the fit of our Men's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature regulated as you enjoy high-intensity skiing, hiking, running, and more.

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

10' (25 cm) center front zipper semi-locking slider

Knit in Vietnam: 100% Merino Wool. Exclusive Of Decoration

Garment Weight: 298 g = 10.51 oz

Machine Wash Warm Gentle Cycle.