The Run Zero Cushion provides comfort for the long haul. From the virtually seamless toe to the breathable mesh zones and from the indestructawool technology to the Achilles heel tab to reduce slippage, this sock offers purpose-driven features that help you get the work done. For men, this sock is designed to provide comfort and durability during running. With a low ankle design, it's perfect for training miles on the trail, pavement, or treadmill. The sock features breathable mesh zones and indestructawool technology for added comfort and durability.