The Asics Gel Kayano 21 is the latest update of the premium model featuring latest technology evolutions from the japanese manufacturer for overpronators who like really cushioned and luxurious running shoes.
Most important change compared with its predecessor the Asics Gel Kayano 20 is the evolution of the FluidRide™ in the midsole which reduces weight by 15% and enhances rebound properties by 20%. Larger pieces of Gel© can be found along the rear foot to improve cushioning and also crash pad has been redesigned to provide a smoother transition from heel to toe. Another innovation is the ComforDry X-40 sockliner that adds around 40% more bounce back and durability than a standard one.
This new version also takes advantage of the AHAR rubber which is placed in critical areas of the outsole for exceptional durability. FluidFit™ upper technology combines multi-directional stretch mesh with stretch reinforcements that in combination with a more independent eyelets result into a better adjustment of the athlete's foot matching all expectations