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Neutral. The PowerGrid Cortana provides an incredibly responsive ride for everyday runners with a lightweight construction and supreme cushioning with PowerGrid technology. Upper: Sauc-Fit, a unique fit system in the upper that not only locks the midfoot onto the platform, but also keeps the heel secure and comfortable. Engineered air mesh provides outstanding breathability. Hydrator® collar lining is Saucony's performance apparel fabric that provides next to skin comfort and maximizes wicking. Padded air mesh tongue for increased comfort and maximum ventilation. Midsole: Removable ComfortRide+ sockliner uses memory foam technology for incredibly plush step in comfort and faster recovery. HRC (High Rebound Compound) Strobel board increases cushioning and step in comfort. PowerGrid™ with PowerFoam™ combines Saucony's innovative PowerFoam™ with their industry acclaimed Grid technology to provide runners with superior cushioning and responsiveness on every run. Impact Interface cushions and isolates heel impact. SRC (Super Rebound Compound) provides shock attenuation and sets the foot up for a smooth transition. Outsole: XT-900 is a carbon rubber outsole material that offers exceptional traction properties without sacrificing durability. IBR+ is Saucony's updated blown rubber compound that is lighter, more responsive and has enhanced cushioning and durability properties. Flex grooves provide optimal flexibility. -------------------------------------------------------------------------------- Runner's World Best Debut September 2011 "This new shoe combines a stripped-down upper with a simple rubber and foam sole that has a level profile. While most shoes have a heel drop of around 12 millimeters, the Cortana's is only 4.6 millimeters, which means a flatter foot strike. According to our lab tests, the lightweight foam (the PowerGrid in the name) supplies outstanding energy return. The Cortana is ideal for forefoot strikers and runners looking to transition to more minimal models with less risk of injury."

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