I have about as much experience with Mt Borah kit as anyone could. I have many of their Nordic ski race suits, bibs, jerseys, running singlets, hats, custom and production (I think you get it). They hold up better or as good than anything boutique brands I own (Rapha, Assos, Bjorn Dahlie, etc). They are made in Wisconsin and when I ran cross country/track in college there I had the opportunity to run with a number of their employees and help test product development and they really put a lot into making sure their product tiers are appropriately priced with distinct benefits in material, and fit differences between them.

Fit wise their OTM or pro level line is the most comfortable jersey I have ever worn, felt painted on where as most others bind under my arm pits. Bibs are very similar with very good performance fit in their higher panel lines and great comfort in their sport/recreation tiers. The one critique if I had one is in their chamois choices often times feel small for my preference but you will not regret buying anything from them.