Engineered knit upper: Improves breathability. At least 50% 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: Redesigned external heel counter: Helps keep the foot stable and provide a more comfortable stride. LITETRUSS technology: Improves medial support and midfoot integrity.