GEL® comfort from heel to toe. Energize your stride with smooth, balanced cushioning that attenuates shock during impact and toe-off phases. Made with Solyte® material and our patented Trusstic System® technology, the GEL-Quantum 180™ 2 MX delivers a lightweight ride without compromising the shoe's structural integrity. Weight: 10.1 oz. Heel Height: 21mm. Forefoot Height: 11mm.