NIKE Lunar Eclipse+ 2 Running Shoes Synthetic *UPDATED* Dynamic Fit system - The Dynamic Fit system features soft material that wrap the midfoot and arch from under the foot and connect to the laces. It moves with the foot as you run for a truly glove-like fit, reducing the space between foot and shoe for total comfort. Innovative heel and toe support plate suspension - helps to relieve the impact caused when landing and taking off. As you land on your heel, the suspension system helps to absorb some of the shock. Lunarlon cushioning - gives you a plush, bouncy ride when running those miles. New Flywire Technology - ultra lightweight and very strong, this new fabric gives great support without weighing the shoe down or compromising on comfort NIKE + enabled - This shoe accepts the revolutionary new Nike+ sensor.