CUSHIONING: NITRO: LIGHT & RESPONSIVE: Advanced foam technology provides superior responsiveness and cushioning in a lightweight package. GRIP: PUMAGRIP: HIGH TRACTION RUBBER: Durable rubber compound that provides multi-surface traction. VISIBILITY: Strategically placed reflective accents for low-light conditions. Low boot Engineered mesh upper NITRO FOAM midsole for a responsive, cushioned fit PUMAGRIP rubber outsole for traction and durability Lace closure for a snug fit TPU heel piece for added stability Reflective design elements PUMA Cat Logo at toe PUMA Formstrip at lateral side PUMA Velocity NITRO 2 Fade PUMA Black/Elektro Purple/PUMA Silver Men's Running Shoes, Black/Purple/Silver, Size: 13