The MAXx2 features VJ's new SuperFOAMance midsole which offers extreme cushion and energy return with every step. This new foam is a modern, supercritical foam that is lighter, more responsive, more comfortable and more propulsive than a traditional EVA foam. Compared to other foams, SuperFOAMance is more durable, does not rip as easily, and bonds to the VJ grippy outsole much better. The midsole is finished with a full length rock plate that protects your feet from sharp edges and protruding branches, while also adding torsional rigidity and increasing efficiency. The upper is a light, breathable, durable one-piece that together with the foot-shaped last offers maximum comfort and performance. We recommend ordering a 1/2 size down.