Seen sums socks advertisied on a social media account , they did look good , also a food offers if you bought 3 pairs ,but still until you see them on your feet , who can tell , they are comfortable , breathable , good elasticity hug your feet and angles with out being too tight ,nice length which is important to me and the bonus ball they have sticky feet soles stop any movement , after 3 x 10 miles runs they work well