Trail running socks - Trail Ultra black/yellow Size Socks:39-40 This foot-care kit protects and

This foot-care kit protects and soothes your feet during sport from start to finish

The 3Feet® LOW from Sidas is an insole specially adapted to the anatomy of flat feet and thus ensures the best possible wearing comfort

The reflective strip on the back of the sock provides better visibility for your night runs

T-Free® Technology for Natural Movement

Trail running socks - Trail Ultra black/yellow Size Socks:39-40 This foot-care kit protects andMuscle 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: