Overcome Your Limits with Puma Magnify Nitro 2 Experience a new level of performance in your runs with the Puma Magnify Nitro 2, designed to give you comfort and response with every stride. NITRO Technology: Cushioning and Lightness Nitrogen-injected NITRO foam in the midsole ensures superior cushioning and agile response, while maintaining an extremely light weight. PUMAGRIP: Traction and Durability The PUMAGRIP rubber compound offers exceptional traction on all surfaces, improving the durability and adaptability of the shoe. Personalized Comfort and Fit A premium knit upper and molded collar improve heel fit and comfort, ideal for long runs where comfort is crucial.