Choose a strong base for demanding tours and boldly confront the adventure of trekking on any terrain with the X-SOCKS® TREK EXPEDITION.Designed for men´s and women´s feet, these socks with Barefoot Climate® provide comprehensive wearing comfort.This sturdy product with a knee-high cut overcomes every challenge under all outdoor conditions.The high-tech design owes its superiority to ten patent-protected technologies.Intelligent innovation has raised the bar of quality even higher, so the X-BIONIC 4.0 generation models benefit from further optimized functions:the intensively ventilating Air-Conditioning Channel® 4.0 now directs fresh air along the sole of the foot Compare prices from: X-socks in Men's Underwear