The GEL-QUANTUM 90 IV combines performance-based technologies with urban aesthetics. It provides the comfort you need to keep your mind and body in harmony throughout the day. The upper of this shoe has been modified with a seamless structure that makes it softer, more flexible, and more breathable for various contexts. The updated midsole highlights other models from our GEL-QUANTUM collection. It features a full-length AMPLIFOAM cushioning system and Scutoid GEL technology for maximum comfort every day.