PUMA Running Shoe Electrify Nitro 2 - Black/white, size 44½

The Electrify NITRO 2 is the perfect choice for runners just starting out, delivering the cushioning and reliability you need for your daily run The dual midsole features our lightweight, nitrogen-injected NITRO foam in the heel along with our more robust PROFOAMLITE in the rest of the midsole, allowing for an airy, cushioned ride We've revamped the breathable mesh upper with a futuristic look and redesigned the rest of the shoe with a roll collar, built-in heel lock and a special "cat" tongue to secure the heel for every run NITRO: Advanced nitrogen-injected foam designed to provide superior responsiveness and cushioning in a lightweight package PROFOAMLITE: Extremely lightweight EVA designed to cushion your landing and propel each step PUMAGRIP: Durable performance rubber compound designed for all-surface traction