Ever since ASICS debuted its GEL-Kayano in the early 1990s its been an elite option for runners worldwide. Get in on the legacy with the 25th anniversary edition of this runner. This one includes reflective elements throughout the upper for a true light show onces its hit by headlights. A Fluidfit upper includes heel clutching technology to cushion your stride and keep your heel in place. The FluidRide midsole further cushions while Guidance Line midsole technology keeps you pointed in the right direction. GEL cushioning in both rear and forefoot for a full range of cushioning. Dynamic DuoMax support for dual-density support. Impact Guidance technology keeps your foot on line through your stride.