Fasten8 - Advanced nylon straps with lacing system around the foot for a secure, custom fit. Ignite Foam - Revolutionary and proprietary midsole foam provides energy return, responsive comfort, stable cushioning and superior comfort. The PWRCAGE super strong and lightweight TPU saddle provides excellent support and stability during your swing. High performance mesh fabric + TPU; non-stretchy, waterproof and breathable mesh fabric combines premium TPU and PWRFRAME for a spikeless performance shoe. Organic traction inspired by nature, strategically designed tabs in the right areas for improved traction during swing for grip and strength.