X-SOCKS Run Speed Two Men's Socks, Black, US9-10.5

The highly-acclaimed and extremely popular Speed One running sock has had a make-over, integrating the very latest X-SOCKS technologies. The lightweight competition sock is now perfectly suited for longer distances, up to and including the marathon, thanks to the well-engineered climate management technology and the ideally designed cushioning system. The new CentralFlow AirCool Stripes in the footbed provide 8x more fresh air, thus improving the ventilation whilst at the same time transporting excess warm, moist air out of the shoe more quickly than before. Material: Nylon 81%, Polypropylene 16%, Elastane 3% Features: *Self-adjusting Cuff; adapts to any size leg without slipping or constricting. *AirGuides; function like spacers alongside the AirConditioning Channel *AirConditioning Channel; ventilates and dries *Toe Protector; protects against blisters and chafing *Instep Protector; distributes pressure *Extensor Protector: The three-piece protector relieves pressure on two cord-like tendons, thus reducing the risk of tendon strain by up to 50% *Stretching Rib; for an optimised fit *Anatomically shaped footbed; for a precise fit *Achilles Tendon Protector; reduces the incidence of pressure points and the risk of scraping and bruising *X-Cross Bandage; cushions and stabilises the sensitive ankle area without restricting freedom of movement *Heel Protector; reduces friction and the risk of blistering *Traverse AirFlow Channel System; lateral ventilation under the sole