Manufacturer: Kenby Sports Socks Laboratory Size: 25.0 - 27.0cm Sock Length: Approximately 38.0cm above the heel (stretches when worn) Color: Black My son used to get holes in the toes of his socks very quickly, so we were constantly buying new ones. We tried various brands, but we finally settled on these socks. Since switching to these socks, he hasn't had a single hole in the toe. He didn't get any holes even during his high school club activities. (This is just based on my son's experience.)