ASICS Women's GT-1000 3 PR Running Shoe 100% Textile and Synthetic Imported Synthetic sole Shaft measures approximately 2" from arch Heel measures approximately 1.5" Platform measures approximately 1 inches Boot opening measures approximately 10" around Cushioned running shoe featuring DuoMax pronation support and Guidance Line flex groove in sole Rearfoot and forefoot GEL cushioning SpEVA midsole foam Supportive Guidance Trusstic System