Mach 6 Shoe Size:9.5 Training Backpack (Medium

Training Backpack (Medium

At the core of the 1540v4 is our signature Fresh Foam midsole

We reworked the leader of the super shoe pack and tuned the engine underneath to help you chase personal bests from a 10K to marathon

aching heels

Synthetic lining

Mach 6 Shoe Size:9.5 Training Backpack (MediumBehold our lightest, most responsive Mach to date. This lively trainer has been fine tuned for extra energy return with a super critical foam midsole and updated for enhanced durability with strategic rubber coverage in the outsole. Implementing speed focused design details throughout, weve enlisted a new creel jacquard upper with zonal breathability and an internal gusset to deliver the foot hugging comfort required to set your next PR. Product