Trail running socks - Trail Ultra black Size Socks:37-38 Toplayer: Cushioning

Toplayer: Cushioning

protecting you from blisters caused by friction between the skin and the boots

Toe separation: toe box separating the big toe from the others

This ergonomic insole features a 1

You can use it as you see fit: before

Trail running socks - Trail Ultra black Size Socks:37-38 Toplayer: CushioningMuscle 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: