ISW Isolwool®Mid Calf Crew mens The two brothers who started

The two brothers who started FitSok happen to be third-generation sock makers AND passionate runners

Constructed with Isolwool®

speed & comfort

Say goodbye to sweaty

and we're delighted to hear how much runners everywhere are loving our socks

ISW Isolwool®Mid Calf Crew mens The two brothers who startedBeen looking for the end all, be all wool trail sock? We've been getting tons of requests for an ISW Crew, and it's finally here. The new ISW is a power packed running sock built for the trail and beyond. Constructed with Isolwool, the ISW utilizes merino wool and polypropylene to deliver superior moisture movement. A light cushion prevents blistering and enables prolonged performance in the harshest conditions. Wool naturally fights bacteria allowing