X Bionic Outdoor Socks. Technologically advanced socks developed by some boffins in Switzerland who know far too much about fabric technology & how it can enhance your comfort & performance. The X- Bionic Outdoor Sock is designed specifically for modern sporty trail shoes or mid-cut lightweight boots. Loaded with patented zones of protection for the foot & an effective temperature regulating system, X Bionic socks give you a precise supportive fit assuring you of comfortable dry feet all day long. All X-Socks aid the reduction of blisters, skin irritation, overheating, brushing, muscle cramps & skin grazing. If there was anymore thought & technology in these socks then theyd probably do the walking for you too. Air Conditioning Channel – ventilates & dries Self-adjusting Cuff – adapts to any size leg without slipping or constricting X-Cross Bandage – cushions & stabilises the sensitive ankle area without restricting freedom of movement Toe Protector – protects against blisters & chafing Traverse Air Flow Channel System – lateral ventilation under the sole Anatomically shaped footbed – for a precise fit Heel Protector – reduces friction & the risk of blistering Achilles’ Tendon Protector – reduces the incidence of pressure points & the risk of scraping & bruising Air Guides – creating space between the sock & the shoe, these are positioned along the Air Conditioning Channel to facilitate continual air circulation, reducing the risk of blisters Instep Protector with Air Vent Zone – distributes & absorbs pressure from lacing Toe Tip Protector – protects the tips of the toes Air Cool Stripes – cooling channels under the sole of the foot Air Flow Ankle Pads – provide the ankle with maximum protection