Victory is yours for the taking in these lightweight racing flats. Breathable mesh upper features seamless construction that reduces irritation and friction caused by traditional stitches and seams. Perforated sockliner allows for moisture drainage. SpEVA midsole for energy return combines with Magic Sole's vented midsole design for lightweight breathability. Rearfoot GEL Cushioning System diffuses shock on impact and allows a smooth transition through your stride. ASICS High Abrasion Rubber (AHAR) in the heel is made of carbon rubber for extreme durability. DuoSole reduces outsole weight and enhances flexibility and traction. Wt. 4.6 oz.