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The Smartwool NTS Midweight 250 Pattern Zip Top can be used as a single layer in cool temps or as a baselayer when you are out exploring in the extreme cold. Flatlock seams allow for minimal chafage and the form fit makes layering a piece of cake. And don't worry about overheating, the 100% Merino wool is great at wicking away extra moisture. It does all this and even has stripes.
100% Merino Wool – Naturally wicking Merino wool keeps you dry and fights bacterial growth.
Fabric Weight – 250 gm / m² (7.4 oz / yd²)
Form Fit – Smartwool's slimmest fit. Follows the contours of the body
Interlock knit; UPF 50+
Shoulder Panels Eliminate Top Shoulder Seams
Flatlock Seam Construction – Designed to eliminate chafing