A cosy winter sock ustilising the softness and warmth of merino wool. The 12cm cuff sit's nicely under tights sealing in the warmth. Warm feet are happy feet. Top Features of the Castelli Diverso Socks Merino wool blend Full-length protection 12cm cuff 54g (pair) Product Data High Visibility: No Road: Yes Merino- The Wonderful Wool Merino wool is a wool ideally suited for the construction of socks. It's natural characteristics of warmth without weight, super softness, excellent breathability and odour prevention make for socks that you can ride and ride and ride in and get the same feeling of comfort every time. Merino also retains excellent warmth even when wet so adds all weather adaptability to its list of advantages.