The Puma Mostro—Italian for 'monster'—debuted in '99 with a minimal streamlined design that made it a go-to for casual street wear. Designed to celebrate London Fashion Week, the Puma Mostro LDN sees the silhouette in a sleek monochrome finish. The upper features a diamond textile pattern and the model's famous zigzag closure system, while a ridged mudguard leads down to a durable rubber outsole.