From ASICS, the Women's Dynablast 5 Running Shoes feature: Soft, engineered jacquard upper (made with recycled materials to reduce waste and carbon emissions) Mesh tongue improves the shoe's fit, comfort, and breathability Lace up closure OrthoLite X-30 sockliner helps provide soft step-in comfort FF BLAST PLUS cushioning helps provide lightweight impact absorption and a responsive rebound Trampoline-inspired bounce AHAR rubber outsole helps improve durability Approx. 8mm drop Approx. 9.1 oz./260 g weight Imported.