The GEL-KAYANO® 33 is one of ASICS' pinnacle running shoes for support and comfort. FLUIDSUPPORT™ technology adapts to your changing biomechanical needs throughout each stride, providing guidance during key phases of the gait cycle while allowing natural foot motion for smooth, efficient transitions. FF BLAST™ PLUS and FF BLAST™ MAX foams are combined in the midsole. These foams help create a blend of cloud-like softness and a responsive energy return while keeping the shoe lightweight. Engineered mesh upper - A lightweight, breathable mesh material that reduces the need for additional overlays. FLUIDSUPPORT™ technology - Support technology that adapts to the runner's changing biomechanical needs throughout each step. It helps provide comfort and guidance during critical phases of the gait cycle while allowing natural foot motion for smooth, efficient transitions. Rearfoot PureGEL™ technology - Softer, updated version of our GEL® technology that maintains the acclaimed properties that have made GEL® technology famous. Approximately 65% softer vs standard GEL® technology. FF BLAST™ MAX cushioning - One of our most energetic midsole foams that's complemented with cloud-like softness and a responsive energy return in each step. FF BLAST™ PLUS cushioning - Midsole foam that provides a blend of cloud like cushioning and a responsive ride that is lighter than FF BLAST™. OrthoLite™ sockliner - Premium sockliner that provides cushioning performance and moisture management for a cooler, dryer environment. HYBRID ASICSGRIP™ outsole - Combines ASICSGRIP™ rubber and AHARPLUS™ materials to help provide advanced grip for various terrains and advanced durability. Reflective details - Visibility for enhanced nighttime and early-morning reflective brightness.