2-pair set - Run Ultra Race black/yellow Outdoor-bundle Pack includes a USB charger

Pack includes a USB charger to charge both batteries simultaneously

We are excited to present a model of running socks designed and developed with Baptiste Cartieaux

reinforcing the sock's strength and improving overall comfort

they adjust easily to your foot thanks to the rear tab

Naturally occurring silver salt microparticles in the treatment prevent the spread and proliferation of bacteria

2-pair set - Run Ultra Race black/yellow Outdoor-bundle Pack includes a USB charger"Relying on champions to co create tomorrow's foot comfort solutions that are even more efficient and innovative." That's the challenge of offering you the best in running socks! That's why the Run Ultra running sock was developed with both our expertise in the foot domain, and the field feedback from our athletes and the Sidas Matryx Team. The sock acts like an exoskeleton around your foot to stabilise it, provide support and compensate for muscle