The puma faas 600 s mens running shoes feature the faas engineered stability technology and offer an 8mm heel to toe drop to encourage you to midfoot strike the highly breathable airmesh in the upper provides increased comfort while running whereas an external heel counter delivers support and protection without added weight the shoes are equipped with a one piece midsole featuring the faas foam which is more resilient and ensures increased step in comfort as well as a springier feel they a