Based on the success style and performance of the adult version the PUMA Electrify Nitro 4 running shoe gives you a set for all day comfort. This model combines the lightweight cushioning of ProFoamLITE with the performance of nitrogen infused NITROFOAM to give a bouncy comfortable feel underfoot that helps make the most of every step. Using highly durable PUMAGRIP rubber in the outsole gives you the traction you need as well as a longlasting build. ProFoamLITE Extremely lightweight EVA designed to cushion your landing and propel each step. NITROFOAM Advanced nitrogen injected foam designed to provide superior responsiveness and cushioning in a lightweight package. PUMAGRIP Durable performance rubber compound designed for all surface traction. The upper of the shoes is made with at least 30 recycled material.