All tubes are 19". Fits both kids and adults. Expect them to be over the knee to thigh high for kids, knee high for teenagers and shorter adults, and mid calf for most adults.
The tube socks are made of:
75% Ring Spun Cotton,
PRIDESOCKS are made by the sister of IVAN SMITH, who runs SKATERSOCKS. So, if you know SKATERSOCKS already, you know that you can trust in the quality.