Protection level 3 crew running socks by Thorlo. Constructed with heavyweight padding to cushion and protect your feet from the damaging effects of impact, shear and blistering common to running and jogging.

1) Heavyweight padding at ball and heel provides protection against shock, impact and shear forces.
2) THOR•LON® throughout the body of the sock wicks moisture, keeping feet drier and reducing blisters.
3) Lightweight padding in arch provides protection and allows for better fit and arch support.
Fiber Contents: 88% THOR-LON Acrylic, 10% stretch nylon, 2% spandex.

Size 9 fits youth shoe size 13 - 4, women's shoe size 4 - 6.
Size 11 fits men's shoe size 5 1/2 - 8 1/2, women's shoe size 6 1/2 - 10.
Size 13 fits men's shoe size 9 - 12 1/2, women's shoe size 10 1/2 - 13.
Size 15 fits men's shoe size 13 - 15.

Six Pairs Per Package.