Sock details: These are a cotton blend tube style sock. 40cm in total length, so the height they reach on your calf will vary, depending on your foot size. Generally, they fit youth, tween and short people as pictured. On a taller person a bit lower. Minimal seaming at the toe and not a compression sock, so particularly good for people (especially kids) with fussy feet. Cotton blend = less stinky boot feet.