Award-winner and trail crusher, the Superior has long been a fan-favorite. With the 3.0 version the reinforcements in the upper were a huge success so Altra added even more! They also included their new 4-Point GaiterTrap™ to keep more debris, dirt and sand out as you shred the trail. The DuraTread outsole is both nimble and tough so you can run over gnarly terrain with confidence and finesse. Weight 8.2 oz, Heel-Toe Offset 0 mm.