Run hard, land soft. The GEL-Quantum 360 Knit shoe is constructed with 360 degrees of our GEL technology cushioning, balancing high performance and maximum comfort. A new stretch knit upper surrounds the foot in a custom, sock-like fit elevating this GEL-Quantum shoe to another level - helping you power through running and cross-training workouts. Weight : 10.6 oz. Heel Height : 21mm. Forefoot Height : 11mm.