True to its award-winning heritage, the Clifton 5 is light, cushy and very very fast. The 5 also has an all-knit, all comfortable upper. The knit upper offers support and flexibility where you need it. The Clifton 5 knit maintains the famed HOKA midsole geometry and a trusted foam package to help provide consistent cushioning throughthe life of the shoe. Combined with the forgiving and adaptive forefoot, we're talking a smooth smooth ride.