The Hybrid Fuego Knit 'Castle Rock' makes use of a lightweight textile knit upper in a heather grey finish. Tonal no-sew overlays add lightweight support to the streamlined build, while neon green accents add vibrant pops of color on the webbing pull loop and PUMA branding elements at the tongue and lateral heel. A midsole that combines IGNITE FOAM and NRGY beads rides atop a rubber outsole in a final hit of neon green.