The Nike ZoomX Vaporfly Next clears your path to record-breaking speed with a lighter design and faster feel than before. With more cushioning underfoot and reduced weight up top, the result is unprecedented energy return and comfort. The ZoomX foam delivers the greatest energy return and adds more responsive comfort. The Vapor Weave material up top is an engineered woven mesh that驴s light and breathable while giving a secure, comfortable fit. The updated laces loop through lightweight side sashes that eliminate the need for an arch band.