From ASICS, the Women's GT-2000 15 Running Shoes feature: Engineered woven mesh upper Lace up closure Fabric lining Softer FF BLAST™ MAX compound to feel more bounce while maintaining stability Rearfoot PureGEL™ technology helps provide lightweight cushioning and softer landings AHARPLUS™ heel plug rubber helps improve durability Trampoline-inspired outsole pod helps to improve stability during the toe-off stage of your stride AHAR™ LO rubber outsole helps create better traction, improved softness, and advanced durability Approx. 7.8 oz./221 g weight Approx. 8mm drop Imported.