Product Story - The Speed 600 sparked a revolution in running innovation. And now version two is here – and it's sure to spark another revolution. This is PUMA's lightest shoe ever, a mere 295 grams. Packed and stacked with more innovative technologies than we could list here (see below for that), it's a shoe that has no equal. FEATURES + BENEFITS HYBRID: PUMA’s combination of two of its best technologies: IGNITE foam and NRGY beads IGNITE: PUMA's foam midsole and branded heel cage supports and stabilises by locking the heel onto the platform NRGY: PUMA’s foam midsole offers superior cushion from heel to toe so you can power through your run PROFOAM: PUMA's lightweight, high-rebound EVA midsole solution provides instant cushioning and a responsive ride PROPLATE: PUMA’s engineered propulsion plate provides a reflex toe-off and propels you faster through every stride SPEEDTRACTION: PUMA's outsole with enhanced cushioning, durability and traction. DETAILS - Low boot Premium engineered mesh upper TPU heel counter PUMA branding throughout PUMA Formstrip at lateral sides