ASICS MetaSpeed Ray Size:M5.5/W7 Enhanced NITROFOAM™: Advanced nitrogen-infused foam

Enhanced NITROFOAM™: Advanced nitrogen-infused foam designed to provide superior responsiveness and cushioning in a lightweight package

No Petroleum

Updated flex-groove configuration of blown rubber for traction and durability

Engineered mesh material improves airflow to help your feet keep cool

Acts as reinforcement to prevent the soft cushioned area being damaged due to heel rub

ASICS MetaSpeed Ray Size:M5.5/W7 Enhanced NITROFOAM™: Advanced nitrogen-infused foamSTART FAST. FINISH FASTER. The METASPEED RAY is THE pinnacle racing product, designed for runners who are looking to start fast and finish faster. UPPER MATRYX is an extremely lightweight technical mesh that helps lock the foot onto the shoes platform at fast paces. MIDSOLE FF LEAP foam is 33% lighter and 13% more responsive than FF BLAST Technology. Carbon plate that helps you conserve energy by preventing heel drop while generating forward