The Puma Mostro made its debut in 1999 and has since become one of Puma's best-selling shoes. Affectionately named after the Italian word for monster, the shoe was originally inspired by two sports shoes—a sprint spike from 1968 and a surf shoe from the 1980s. This version, the Mostro Jelly, delivers pure nostalgia: with flexible, transparent material for beach vibes or street style statements.

- Elastic Velcro closure system
- Upper and midsole made of translucent jelly material
- Sole with rubber spikes as a design detail