Engineered knit uppers provide a sock-like fit and are made from 100% recycled polyester Adaptive zonal knit on the uppers along with inclusive insteps offer a comfortable fit for a variety of different foot shapes 3D heel padding helps keep your feet in place Laces and sockliner covers are made with 100% recycled polyester; EVA sockliners contain 20% recycled EVA Updated dual-density CloudTec® midsoles with Helion™ superfoam provide a smooth ride and cushioning for soft landings on hard surfaces TPU-injected Speedboard® integrated into the midsoles for a dynamic ride, high energy return and soft underfoot feel