Product Story The Perfect Choice For Young Runners, The Electrify Nitro 3 Running Shoe Offers A Progressive Design, Delivering Cushioning And Reliability For Your Daily Jog. In A Redesign Of The Previous Models, This Dual Midsole Has More Nitro In The Heel And Durable Preformulate Throughout The Rest Of The Midsole. The Result Is Better Responsiveness And Ride Under The Foot, For A Shoe That's Always Airy And Cushioned. We've Revamped The Breathable Mesh Upper With A Futuristic Look And Retooled The Rest Of The Shoe With A Rolled Collar And A Heel That Will Hug Your Foot. New Female Runners Looking For Good Value: This Is Your Shoe. Features & Benefits Nitro : Advanced Nitrogen-Injected Foam Designed To Provide Superior Responsiveness And Cushioning In A Lightweight Package Preformulate: Extremely Lightweight Eva Designed To Cushion Your Landing And Propel Each Step Puma Grip: Durable Performance Rubber Compound Designed For All-Surface Traction. Details Engineered Mesh Upper Tpu Heel Spoiler Heel Fit: Rolled Collar To Keep The Heel Secure And Comfortable Cushioning Level: Medium Puma Formstrip On The Lateral Side Heel-To-Toe Drop: 8Mm Shoe Pronation: Neutral.