Double Down On Race Day With The Fast-R Nitro Elite. Designed To Set Records, This Marathon-Worthy Racing Shoe Has A Breathable Mono-Mesh Upper With Targeted Pwrtape Reinforcement For Durability And Support. A Cutting-Edge, Two-Part Midsole Features Our Lightweight Nitro Elite Foam For Supreme Responsiveness. Helping You Reach Max Speed Is A Carbon Fibre Pwrplate And A Cushioned Heel That Works With A Reactive Forefoot To Propel You Forward. Add In Our Sturdy Pumagrip Outsole For Traction, And This Shoe Will Have You Logging Miles Faster Than Ever Before.