The Nike Zoom X 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. Vapor Weave material up top is an engineered woven mesh that’s light and breathable while giving a secure, comfortable fit. Nike Zoom X foam delivers Nike Running’s greatest energy return yet, and Next% adds more Zoom X for responsive comfort on race day. Updated laces loop through lightweight side sashes that eliminate the need for an arch band—helping to reduce shoe weight and relieve pressure on the top of your tendons.