AfterPay Available - Combining your favourite performance-based technologies with street-style aesthetics, the Asics Gel-Quantum 90 IV offers enhanced comfort with no sacrifice to fashion. A seamless no-sew upper provides a soft and flexible feel that keeps your foot secure throughout the day. Mimicking the success of its predecessors, the Asics Gel-Quantum 90 IV features Scutiod Gel technology that absorbs shock and enhances comfort.