NWOT. Worn once. Launch into running with next-level comfort and upgraded energy return. It’s game on. Key features Weight: 214g CloudTec® for soft cushioning and great energy return. Lightweight materials and serious comfort through every step. New TPU Speedboard® and forefoot rocker for smooth rolling. Engineered polyester mesh plus a closed outsole. Helion™ superfoam offers responsiveness plus comfort.