From ASICS, the Women's GT-2000 13 Asics Track Club Running Shoes feature: Jacquard mesh upper: made with recycled content to reduce waste and carbon emissions Lace up closure Reflective details designed to help improve visibility in low-light settings The sockliner is produced with the solution dyeing process that reduces water usage and carbon emissions 3D GUIDANCE SYSTEM™ helps provide advanced stability for a smoother stride Rearfoot PureGEL™ technology helps provide lightweight cushioning and softer landings FF BLAST™ PLUS cushioning material helps provide lightweight impact absorption and a responsive rebound OrthoLite™ X-30 sockliner helps provides soft step-in comfort AHARPLUS™ heel plug rubber helps improve durability AHAR™ (ASICS High Abrasion Resistant) LOW HARDNESS outsole helps improve resistance against wear Approx. 8mm drop Approx. 8.2 oz./235g weight Imported.