Product DetailsRun hard, land soft. The GEL-Quantum 360™ CM shoe is constructed with 360 degrees of our GEL® Cushioning Technology, balancing high performance and maximum comfort. The color shifting mesh panels prevent forefoot irritation through an optimal fit - helping you power through running and cross-training workouts. Weight: 10.7 oz. Heel Height: 21mm. Forefoot Height: 11mm.