Fuel your run with the force of the New Balance® Fuelcell v1. Predecessor: None. Support Type: Neutral. Cushioning: Lightweight, flexible response. Surface: Road. Differential: 6mm. Breathable, no-sew mesh uppers with 3D synthetic overlays. Traditional lace-up closure. Lightly cushioned tongue and collar. Breathable textile linings. Foam cushioned footbed for added support. Features a FuelCell midsole that is a nitrogen-infused performance foam that provides maximum energy return and shock absorption. Durable and flexible rubber outsole. Measurements: Weight: 12 oz. Product measurements were taken using size 12, width D - Medium. Weight of footwear is based on a single item, not a pair.