The new GEL-DS Trainer® 23 model has undergone a bit of a makeover in it’s latest iteration, but that doesn’t mean that it has sacrificed any of the performance. The new Adjustable Slit Upper wraps and supports the foot, while also reducing the weight of the shoe. Updated DuoSole® outsole has increased durability while maintaining the weight & ride that you have come to love. FLYTEFOAM® MIDSOLE TECHNOLOGY Our FlyteFoam technology provides exceptional bounce back and responsiveness no matter the distance, utilizing organic super fibers to help reduce packing out that traditionally happens with softer, low density foams. PROPULSION TRUSSTIC® TECHNOLOGY Mimics connective tissue in the foot by creating tension as foot enters propulsion stage. DUOSOLE® OUTSOLE Reduces weight and enhances flexibility while maintaining traction and durability. ADAPT MESH AHAR HEEL PLUG 3M REFLECTIVE DUOMAX® SUPPORT SYSTEM A dual density midsole system positioned to enhance support and stability, positioned sport specifically. REARFOOT GEL® TECHNOLOGY CUSHIONING SYSTEM Attenuates shock during impact phase and allows for a smooth transition to midstance.