Altra DUO Running Clothing they dampen the horizontal forces

they dampen the horizontal forces of touch-down as well

Longer lasting support and cushioning

1x Gel pack

The base structure that connects the outsole to the midsole

Padded Cushioning

Altra DUO Running Clothing they dampen the horizontal forcesIf 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.