For wool sock fans, the DeFeet Wooleator is a must-own sock. The Wooleator is a thin, low-bulk sock equally comfortable for cycling or casual wear, designed to keep feet warm and dry in winter, but thin enough to keep feet cool and dry in summer. 56% USA Merino Wool, 43% Nylon, 1% Lycra
(Note: item not available until Packet Pickup).