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 is our warmest baselayer. Works as a single layer in cool weather or as a baselayer in cold weather
-UPF 50+ naturally protects against the sun's rays
10" (25 cm) center front zipper
Shoulder panels eliminate top shoulder seams
Flatlock seam construction designed to eliminate chafing
100% Merino Wool
Care: Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Iron Low. Dry Clean.