Every sport has a slightly different demand for the equipment you select. Socks are no different, except that an outstanding sock, will deliver outstanding results, where the wrong sock just plain sucks. How high a sock will rise above the ankle is fashion, form and uniform... the taller the compression sock, the better the overall performance. The basketball team sporting our knee high TWELVE has found a richeous look. The SEVEN on a football player, mountain biker or hiker is simply an effective choice of equipment. Select the sport, see what most people are doing, then wear something different anyway.