X Bionic Trekking Light Socks. For the best ground contact in lightweight boots & shoes. The varying density of the cushioning zones ensures that your feet never lose contact with your shoes. The principle of X-SOCKS technology featuring the Air Conditioning Channel in combination with high-tech materials creates a stable climate for dry feet. All X-Socks aid the reduction of blisters, skin irritation, overheating, brusing, muscle cramps & skin grazing. If there was anymore thought & technology in these socks then theyd probably do the walking for you too. Self-adjusting Cuff – adapts to any size leg without slipping or constricting. Air Conditioning Channel – ventilates & dries Toe Protector – protects against blisters & chafing Instep Protector – distributes & absorbs pressure from lacing Rod Type Padding – cushions & ventilates inside the collar of your boot Anatomically shaped footbed – for a precise fit Achilles’ Tendon Protector – reduces the incidence of pressure points & the risk of scraping & bruising X-Cross Bandage – cushions & stabilises the sensitive ankle area without restricting freedom of movement Air Flow Ankle Pads – encourages active air exchange Heel Protector – reduces friction & the risk of blistering Traverse Air Flow Channel System – lateral ventilation under the sole