Thank you for viewing. 30% wool, 70% acrylic 23-24 cm, from heel to opening is about 14 cm These are hand-knitted socks with a gentle feel. Please understand that this is a handmade item by an amateur, and there may be uneven stitches and imperfections in the seams. Please wash in a laundry net with a delicate detergent on a gentle cycle. If you have any other questions, please feel free to comment.