There isn't any factor more important to stay warm in the coldest of temperatures than moisture management. After working up a sweat, that perspiration is going to cool you down, resulting in a miserable ride when the temperatures drop below freezing. Having an extra 
Wolfgar Replacement Wool Liner can go a long way to extending your foot comfort throughout your ride. Once you feel the warmth being taken over, swap out your liner and keep on riding. 
Made to last with its wool/polyester blend construction, these liners wick moisture away from your foot while staying breathable to offer the perfect balance. And designed in concert with the 
45NRTH Wolfgar Boot the 
Wool Liner will fit perfectly inside the boot shell. 
- For use with Gen 1 45NRTH Wolfgar boots only
 - Wool/Polyester construction
 - Limited Warranty provided for manufacturer defect
 
45NRTH offers a 
limited warranty against manufacturing defects.  
*
Doe not work on Gen 2 or Gen 3 Wolfgar boots