- 6 mm drop; due to variances created during the development and manufacturing processes, all references to 6 mm drop are approximate
- Durable and resilient rippled rubber outsole for full length coverage and superior traction
- Engineered knit upper with embroidery detail for structure and comfort
- FuelCell midsole foam delivers a propulsive feel to help drive you forward
For the treadmill or the roads, the streamlined FuelCell Echo will take you beyond the run. Put in the miles with the highest energy return of our performance foams currently on the market, paired with a full-length rippled rubber outsole designed specifically for resilient traction and grip.