Coldpruf Base Layer is our new favorite long underwear!  Just like the old Duofold pieces the Coldpruf Authentic Wool Plus Long Underwear has 2 layer engineering.  That means more Merino wool outside for extra warmth, super soft ringspun cotton inside for extra comfort and just a touch of nylon for extra durability.

Navy.  Long sleeve crew and Bottom.

Inside:  100% combed ringspun cotton
Outside:  40% Merino wool, 50% combed ringspun cotton, 10% nylon

20% OFF: was 29.99  now 23.99