Nike free rn running shoemore cushioned than the nike free rn motion flyknit the nike free rn mens running shoe features a newly designed midsole pattern that expands flexes and contracts with your foot with every step its lightweight breathable mesh upper helps keep your feet cool and comfortable from start to finish the nike free midsole expands in multiple directions thanks to an entirely new tri star pattern adding a new dimension of flexibility that lets your feet move more dynamicall