With an improved and adaptive fit, the GEL-Kayano 24 is here to help you reach a new personal record. ; Predecessor: Gel-Kayano 23. ; Support Type: Overpronation/Stability. ; Cushioning: High energizing cushioning. ; Surface: Road. ; Differential: 10 mm. ; FluidFit upper technology combines multi-directional stretch mesh with stretch synthetic reinforcements that adapt to the foot for a glove-like fit. ; Lace-up closure. ; Plush tongue and collar. ; Breathable fabric lining. ; ComforDry X-40 sockliner offers antimicrobial and moisture-management properties for a drier, healthier environment. ; I.G.S employs linked componentry to enhance the foot's natural gait from heel strike through toe-off. ; FluidRide midsole piece provides the ultimate combination of bounce back, cushioning, and lasting durability at a reduced weight. ; Rearfoot and forefoot GEL cushioning systems attenuate impacting shock and allow for a smooth transition to midstance. ; Dynamic DuoMax Support System boosts stability and supports without the added weight. ; Combination of GEL and FlyteFoam technologies promotes a lighter weight and build. ; Heel/ Toe: 22 mm/12 mm. ; AHAR rubber outsole material is strategically placed in high-wear areas. ; Guidance Line vertical flex groove decouples the tooling along the line of progression for a smoother ride. ; Guidance Trusstic System integrates Guidance Line construction to enhance gait efficiency and promote mid-foot structural integrity. ; SpEVA 45 lasting. ; Imported. Measurements: ; Weight: 10 oz ; Product measurements were taken using size 8, width B - Medium. Please note that measurements may vary by size.