A tried-and-true model, the GEL-Quantum 180™ 3 takes on running days, training days and work days with fearless confidence. The new athletic-inspired upper incorporates lightweight seamless materials for an updated look and ultra-comfortable fit. Equipped with rearfoot GEL® cushioning and a Solyte® Midsole, this easy runner packs effective, long-lasting comfort all day long. Heel Height: 21mm. Forefoot Height: 11mm.