Nike Running calls its 'Alphafly 2' sneakers "rocket ships" that will "shave precious time off your personal records". ; Designed to celebrate the 20th anniversary of the iconic 'Mayfly' style, they're made from lightweight, breathable Atomknit that contours to the shape of your feet ; Zoom Air units and ZoomX foam deliver high energy return and improve transitions ; Full-length carbon fibre plates create a propulsive feel, while reflective details increase visibility ; Integrated tongues provide a secure fit and help reduce lace pressure ; Exaggerated rubber soles, designed using runner data, provide reliable grip from foot-strike to toe-off
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