The soft and warm merino health socks have a quilted pattern on them. They are made with 95% Fine Merino wool. There is a small wool blend in the heels and toes to promote longevity. They are medium weight, extremely comfortable and very warm. There is no tight elastic top. One size fits most. 95% Fine Merino Wool; 3% Nylon; 2% Elastane Short warm wash. May be tumble dried warm. Do not bleach. Do not professionally dry clean. Do not iron.