Evolution Trinomic XT S Trainers:Back in the 1990s, running shoes weren't afraid to show off their goods. PUMA added to the visual technology boom with Trinomic: clear rubber cells that collapsed and rebounded for cushioning, stability, motion control…​ and double-takes. Trinomic's first superstar was the PUMA XT family. The XT S is a complete novelty for this upcoming season. This trainer features a progressive one-piece upper and a special see-through tooling that makes it possible to visualise our famous Trinomic technology from the inside.One-piece textile mesh upper.Forefoot saddle for optimised stability.Padded collar and tongue for more cushioning.EVA midsole for great cushioning and low weight.Special rubber outsole for an improved grip.Enhanced shock and energy absorption.