The Gel-Kayano 31 Running Shoe Combines Maximum Support With Ultimate Comfort For Complete Peace Of Mind. Our Most Advanced Stability Shoe Yet, It’s Designed To Help You Run Further For Longer. And Thanks To Its Adaptive Stability And Superior Comfort, You’ll Wish The Road Would Never End. In Fact, The Pairing Of Its Puregel Technology And Soft Ff Blast Plus Eco Foam Means You’ll Experience Incredible Comfort Each Time You Hit The Road. What Makes Gel-Kayano 31 Running Shoe So Supportive And Comfortable? * Revolutionary 4d Guidance System Technology Delivers Adaptive Stability For Moments When You Need It Most To Keep You Running For Longer. * Puregel Technology Improves Softness And Shock Absorption To Reduce The Impact On Your Joints And Keep You Running Comfortably. * Ff Blast Plus Eco Foam Delivers Softer Landing And Energised Cushioning To Keep You Feeling Comfortable On Harder Surfaces.what Else Makes The Gel-Kayano 31 Shoe Stand Out? The Gel-Kayano 31 Running Shoe Includes Additional Technical Features To Support You During Your Runs, Which You’ll Find Listed Under ‘tech & Features’ Below.