Saucony Endorphin Speed 5 men's Sprint Distance These converter mittens are flexible

These converter mittens are flexible

Breathable

A carbon fiber plate provides a snappy sensation with each step

ours is scaled in carbs—the metric that actually matters

and a bungee loop for your keys

Saucony Endorphin Speed 5 men's Sprint Distance These converter mittens are flexibleTRAIN FASTER. RACE FASTER. The Endorphin Speed 5 was designed as an up tempo shoe, but its quickly proven itself as much more. Equally capable during long, moderate training sessions and sprints to the finish. Fit for go fast days and go faster races. UPPER Brand new engineered mesh thats lightweight for your up tempo efforts and built with comfort so you can enjoy it everyday. MIDSOLE Full length longitudinal groove to add increased flexibility for a