The NRGY Neko Engineer Knit 'Black' showcases an essential color scheme on the lightweight PUMA runner. The grey and black fibers used on the sneaker’s breathable knit upper are complemented by black overlays at the forefoot and heel, the latter featuring PUMA and NRGY branding hits. Inside, a SoftFoam+ sockliner works in tandem with an NRGY foam midsole to deliver superior cushioning with each step.