Engineered mesh upper with 55% recycled polyester Early stage Meta-Rocker™ for smoother heel-to-toe transitions Rearfoot-Focused Active Foot Frame™ cradles the foot Reflective upper details for added visibility Extended heel pull for ease of entry 3D molded collar enhances ankle stability In-Shoe Comfort: Super critically foamed EVA midsole delivers long lasting comfort Molded EVA sockliner adds additional cushioning and support Added 2mm in stack height provides even more comfort and shock absorption than previous models Durability & Traction: Durabrasion rubber outsole features zonal rubber placement for weight savings and durability