Line-patterned tube socks. Set of 12 pairs! *Currently not considering selling individually. These were originally part of a uniform, but I didn't wear them and used different ones, so I'm selling these. Length: Approximately 35cm Stretchy. Only one pair has been opened for photography. All are brand new and unused. What are tube socks? Tube socks don't have a heel, and are straight. This shape fits perfectly to various foot sizes and shapes, as everyone's feet have different contours. Free size. Socks, tube socks, girls, boys.