Trust the technologically advanced X-SOCKS® MARATHON and get ready for the challenges of long-distance running. In addition to the proven X-BIONIC quality, the optimized functions of the X-BIONIC 4.0 generation offer you even more comfort and safety for better stamina.
Mens Sizing Guide 2019:
57% polyamide, 20% polypropylene, 16% polyester, 6% elastane, 1% glass fiber
Perfect for all your running adventures!