From ASICS, the Women's GT-2000 13 TR Jacquard Mesh Reflective Detail Running Sneakers feature: Jacquard mesh upper Reflective details are designed to improve visibility in low-light settings Lace up closure 3D GUIDANCE SYSTEM™ helps provide advanced stability for a smoother stride Rearfoot PureGEL™ technology improves impact absorption Ortholite™ X-30 sockliner provides soft step-in comfort Sockliner is produced with the solution dyeing process that reduces water usage and carbon emissions FF BLAST™ PLUS cushioning proves lightweight impact absorption AHARPLUS™ heel plug rubber helps improve durability AHAR® LOW DENSITY outsole material helps improve resistance against wear Approx. 8mm drop Approx. 8.2oz/235g (Weight is approximate and based off of a women's U.S. size 7) Imported.