Handmade, with a unique composition of 75% Superwash Merino Wool and 25% Polyamide. The socks are lightweight, soft, and comfortable. They are also highly durable and can be worn both indoors for coziness and with winter footwear. Another equally amazing detail is in their dyeing process. Lucky Feet is hand-painted, making each pair of socks unique. Each skein was developed to produce exactly one pair. It's incredible how we've thought of everything to make you feel super exclusive, isn't it?