The Gel-Kayano 31 is a running shoe that combines optimum support with optimum comfort for an all-round good feeling. Our most advanced stability shoe helps you run longer and further. Thanks to its adaptive stability and premium comfort, you'll wish the run never ended. Its 4D Guidance System technology is a revolutionary stability system that supports your stride as you run - without sacrificing comfort. In fact, the combination of our new PureGel technology with the softer FF Blast Plus Eco Foam means you'll always be walking on clouds. The 4D Guidance System technology provides adaptive stability when you need it most - so you can go even longer. PureGel technology provides better, softer cushioning. This is easy on the joints and also increases running comfort. The FF Blast Plus Eco Foam enables softer landings and dynamic cushioning so that you feel comfortable even on hard surfaces.