Trail running socks - Trail Ultra black Bundle these cross-country socks are as

these cross-country socks are as environmentally friendly as they are protective of your feet

whilst the breathable mesh panels help wick away sweat to keep feet dry during exercise

Its lightweight design ensures optimal comfort during prolonged activity

The high tension of the socks and their skin-gripping thread give these cross-country ski socks a second skin feeling

Ideal for low-volume shoes

Trail running socks - Trail Ultra black Bundle these cross-country socks are asMuscle fatigue causes the foot to collapse and lengthen, and the metas to widen. We have taken these phenomena into account when designing this new range of socks with the athletes of Team Sidas Matryx. Thanks to the Ultra Fit technology, the Trail Ultra socks act like an exoskeleton to compensate for the consequences of muscular fatigue of the foot during an ultra trail. The Trail Ultra sock includes all the features of the perfect ultra trail sock: