Some jobs are more critical than others, jobs where nothing can be left to chance. When you’re operating at the highest level with stakes to match, you need equipment you can always depend on. That’s why FITS® worked directly with a US Special Forces elite operator to develop the Jon sock. It uses the highest quality materials with extra support in the foot, heel and toe. It’s made to take a beating and comes with a patriotic pedigree to match your own. Our patented Full Contact Fit ® hugs the contours of your foot and stays put so there are no loose socks to rub you the wrong way. Crew height rises just below the calf. Extra cushioning in the heel, toe and the arch.