Thoughtful Upgrade
"Puma addressed my one grievance with the standard Magnify 2: an upper poorly suited for heat. The Tech did away with the clunky knit structure of the standard model, and the new version breathes. As an added bonus, the formulation of the Nitro foam in the midsole is far bouncier, and I wonder if Puma was testing A-TPU prior to the release of the Velocity 4."