Puma Eternity Nitro Running Review - YouTube。Puma Eternity Nitro Running Mens Grey Sneakers Athletic Shoes! Experience comfort and style with Puma Men\'s Gray Running Shoes. Perfect for daily runs and casual wear, these shoes offer a sleek design with a touch of vibrant color. 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 Suitable for an average distance of upto 800 km Ideal for Road & Treadmil Running PUMA Formstrip on the lateral side Neutral Half Marathon to 35K, Full Marathon to 50 Preowned and in good condition Minimal signs of wear Smoke free home Fast Shipping