Altra DUO Running Clothing The base structure that connects

The base structure that connects the outsole to the midsole

Recoil midsole + SoftFoam heel insert provides a comfortable cushioning and at the same time giving you some extra energy rebound in the toe off phase

extra weight at the top of the racket frame has increased power while reducing maneuverability or control from the player

Padded Cushioning

A toe-centric design that cuts down on pressure in the big toe

Altra DUO Running Clothing The base structure that connectsIf you're looking for max cushion with minimal weight, the Duo is your shoe. It is a lightweight, race day shoe through and through. With these fresh new colors comes small tweaks for even better performance and durability; the upper is reinforced with updated mesh, the tongue is padded and gusseted for better lockdown, and the Max LT midsole is ready to race mile after mile.