Puma’s Hybrid Rocket Runner gets its name from the dual technologies at work in the shoe’s midsole, which supports a black knit upper and molded heel counter in contrasting red. The cushioning system, separated into two sections at the forefoot and heel, is made up of Ignite foam packed with NRGY beads. The former provides energy return upon impact, while the latter delivers an additional layer of cushioning for a comfortable ride.