A neutral everyday trainer that's designed toimproveyour underfoot cushioning experience, FF BLAST PLUScushioning helps create a lightweight and energetic ride, Rearfoot PureGEL technology maintains all of GEL technology's key properties,but reducing its weight and creating a softer cushioning experience, FLUIDRIDE OUTSOLE helps create a smoother and faster ride, Engineered mesh upper helps provide advanced breathability and comfort without the need for traditional overlays