New Balance RC56 is a low-profile, tech-runner sneaker that pairs a layered retro-running silhouette with FuelCell propulsion for everyday wear. Key attributes: Silver Metallic | Black | Metallic synthetic | FuelCell midsole for propulsive, high energy return | Enhanced shock absorption and stabilization | Lightweight construction | Traditional lace-up closure for an adjustable fit | Standard width options | Layered, multi-panel upper with metallic details | Prominent N-Lock side logo | Retro-running inspired, streamlined silhouette | Dimensions & fit: Weight: 300 g (10.6 oz) | Unisex sizing | Standard (D) width | US size range: M4 / W5.5 – M16 / W17.5 | Composition & care: Metallic synthetic | Wide knit mesh | Cow leather | FuelCell foam (midsole) | Rubber (outsole)