Inov-8 Women's Road-X Lite 155 Running Shoe 100% synthetic Imported Rubber sole Stripped back to its very core, this shoe weighs a mere 155 g and has been designed for athelets wanting a competative edge The super-lightweight fusion compound outsole offers a soft ground contact with a firm, responsive ride The 3mm drop gives the slightest heel raise, making this shoe an excellent choice for raching and speed work on the road Weighs only 5 ounces!