Light as a feather and as fast as lightening, the New Balance UFCXTD4 REBEL v4 running trainers will take you one stride closer to a PB. The brand’s ingenious FuelCell foam sits underfoot, delivering unmatched cushioning and propulsion on gentle jogs and intense sprints alike. Design-wise, they’re crafted with no-sew overlays in a greyscale gradient for a look that is sleek and refined. Mesh & Synthetic Upper, Lace Up Closure, Engineered Branding, FuelCell Foam Midsole, Rubber Outsole, New Balance. New Balance Men's UFCXTD4 REBEL v4 Navy New Balance developed FuelCell to meet the needs of long-distance runners and offer speed, rebound and energy return. Arriving in an all-grey outfit, the race-inspired mesh upper keeps things breezy and streamlined, while a gusseted tongue protects from loose dirt and debris. Underfoot, a geometric midsole is wider and higher than its predecessor, while FuelCell foam offers responsive propulsion to your stride, ideal for training runs and races alike. For extra stability longitudinal pods have been added to the outsole, delivering extra grip across a range of terrains. | UFCXTD4, Textile & Synthetic Upper/Synthetic Sole.