Stay energized in these NovaBlast 4 running Engineered woven mesh upper with advanced stretch, ventilation, and durability 20% Bio-based FF Blast Plus ECO cushioning offers cloud-like comfort Reflective detail helps improve visibility in low-lighting AHAR outsole Trampoline-inspired outsole offers a more responsive bouse back New midsole and outsole geometry that helps produce an energized ride At least 75% of the shoe's main upper material is made with recycled materials to reduce waste and carbon emissions The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology Asics Women's Novablast 4