Smartwool Men’s Base Layer Top - Merino 250 Wool Active 1/4 Zip Outerwear Charcoal (CHARCOAL, L)

Our best selling, and warmest, baselayer, just got a little more refined with an improved fit, chafe-free seam construction and panels that offer more comfort with a pack.

Mid 250
Our warmest baselayer. Works as a single layer in cool weather or as a baselayer in cold weather

Care
Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Iron Low. Dry Clean.