Sole material Rubber Outer material Mesh Closure type Lace-Up About this item FuelCell foam delivers these running shoes for men a propulsive feel to help drive you forward Geometric midsole extends wider and stacks higher than predecessor Longitudinal outsole pods Gusseted tongue with no sew overlays Fun sublimated graphics Description Rebel by name, rebel by nature, the FuelCell Rebel v4 will change the way you look at an everyday trainer. The propulsive feel of FuelCell technology creates a remarkably responsive underfoot that can quickly adapt from long, steady runs to something shorter and more spontaneous. Additional details like a streamlined mesh upper add race-inspired accents to a dynamic upbeat trainer, designed to bring an element of fun back into your run.