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

Powder Blue.  Long sleeve crew and Bottom.

Inside:  100% combed ringspun cotton
Outside:  25% Merino wool, 65% combed ringspun cotton, 10% nylon

20% OFF: was 26.99 now 21.59