Engineered mesh upper Tpu heel spoiler Puma formstrip on the lateral side With a dual cushioned midsole, the PUMA Electrify Nitro 3 in BlackSilver offers an improved responsiveness over previous models, as it pairs NITRO foam with PROFOAMLITE for lightweight cushion with extra bounce through the heel. The PUMA Electrify Nitro 3 uses a PUMAGRIP outsole for a highly durable outsole that offers all the traction you could need, while the upper features an engineered mesh so that PUMA can target breathable zones in the forefoot, with lock down around the midfoot and heel. NITRO Advanced nitrogeninjected foam designed to provide superior responsiveness and cushioning in a lightweight package PROFOAMLITE Extremely lightweight EVA designed to cushion your landing and propel each step PUMAGRIP Durable performance rubber compound designed for allsurface traction Engineered mesh upper TPU heel spoiler Heel fit rolled collar to keep the heel secure and comfortable Cushioning level Medium PUMA Formstrip on the lateral side Heeltotoe drop 8mm Shoe pronation Neutral