ISW Isolwool® Heather Crew Hyper supreme-quality blend of materials will

supreme-quality blend of materials will treat you to the truest fit and best comfort you could ever want from a cushioned running sock

and the moisture-wicking technologies within the fabrics keep your feet dry and cool

That means you don’t have to worry about being distracted by sliding fabric OR sweaty feet

the F4 utilizes to provide compressed venting and moisture wicking in the most extreme conditions

Contact our customer service team if you have any questions about our products or a recently made purchase

ISW Isolwool® Heather Crew Hyper supreme-quality blend of materials willReinforced Crew? Check. 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 the sock to remain clean and fresh. The ISW is designed to perform in hot or cold environments and to