Midsole plates have become more and more common in high class running shoes. While carbon fiber plates place more requirements for the runner, the Nylon plate found in this shoe model is easier to approach for enthusiasts. The Endorphin Speed was designed with race day and intense exercise performance in mind, but has turned out to also be suitable for somewhat longer exercise runs. This version number 5 has been tuned in its performance to also suit those who are not top level runners. - Regular last - PWRRUN cushion foam - 8 mm drop - Speedroll technology creates a great rolling feel - Breathable surface fabric