adidas Performance Women's Duramo 7 W Women's Running Shoe 100% Fabric/Synthetic Imported Rubber sole Shaft measures approximately 2.51" from arch Weight: 8.3 ounces (size 7); Runner type: Neutral Air mesh upper for maximum breathability; SUPERCLOUD for instant step in-comfort, long-lasting responsive cushioning and a super-plush feel Synthetic overlays for added support Seamless, fully bonded upper construction; Anatomically placed deep flex grooves for flexibility, reduced weight and natural movement Breathable mesh lining; ADIWEAR outsole offers the ultimate in high-wear durability