The new Nike ReactX foam is making its debut in the new Nike InfinityRN 4 running shoe. Compared to Nike React foam, the new ReactX foam is engineered to cut down its carbon footprint in a pair of midsoles by at least 43 percent thanks to reduced energy in the manufacturing process, and to increase energy return by 13 percent, claims Nike.
The ReactX foam is the result of over five years of research, focused on obtaining a formulation that combines performance and low environmental impact. The two traditional methods of making foam are either injection or compression molding. The material in the ReactX was put through an injection process rather than through compression molding, thereby delivering a higher energy return without creating a higher carbon footprint, Nike explained in its statement.
In additon to featuring ReactX foam, the new Nike InfinityRN 4 sneaker has an “all-new” Nike Flyknit upper that allows maximum airflow, breathability and flexibility. The lightweight fabric in the updated upper uses an average of 60 percent less waste than traditional footwear-upper manufacturing. The upper in the InfinityRN 4 also features increased volume in the toe, a midfoot support system and a water-resistant liner.
The Nike InfinityRN 4 launched globally on July 13.
