Made from Cocona Natural Technology... These heavyweight socks have been designed to provide optimum comfort & performance whilst walking & hiking. The Trek Comfort socks come with a wealth of features including an arch/ankle brace, articulated heels & cushioning which make sure they provide maximum hold & protection for a long days walking. The Trek Comfort socks have been made with Cocona&194;&174;, using the natural properties of Coconut shells to provide outstanding moisture wicking properties, odour resistance, durability & UV protection. The blend with Merino Wool also makes these socks very, very soft! Trek Comfort Features Cocona/ Merino Blend Moisture Wicking & Odour Resistant Articulated Heels Seamless Toe Inner Arch/ Ankle Brace Long Length Cushioned Highly Breathable 2 Year Guarantee