Speedcat NylonThe Puma Speedcat Nylon ( 405323 02 ) blends motorsport aesthetics with modern comfort, presenting itself as a sleek, dynamic shoe with clean lines. The lightweight nylon upper ensures a breathable feel while enhancing the sporty silhouette, while subtle overlays provide added stability. The gray Gray Echo base appears understated and versatile, while contrasting bright white details, especially the signature formstrip, add striking accents and give