This is a set of 4 pairs of socks: 2 pairs of Montbell expedition socks for severe winter conditions (gray and brown) and 2 pairs of Harrison Ram Total Pile Climber socks (navy and white). All are size M, suitable for those with shoe sizes around 24-26cm. I purchased these about 5 years ago and have used each pair about 10 times. There are no tears, but there is some color transfer (reddish) from hiking boots around the ankles, and there is also some wear on the heels, so please check the images. Please understand that these are used items before purchasing.