The Superior 4.0 takes an already lightweight, fast trail shoe and makes it even lighter. With the new Altra Quantic midsole, new MaxTrac sticky rubber on the outsole, rounded heel and seamless upper it is made to fly down the trail with ease and speed.
Altra Quantic midsole balances cushioning and responsiveness while remaining lightweight
Removable StoneGuard rock protection slips underneath the sockliner to disperse shock and protect the feet from rock-bruising
Trail Claw outsole design uses a sticky rubber pattern to provide improved grip and stability
Quick dry air mesh is updated for durability, wicking water away from your foot while remaining light and breathable
