Pure Boost R ShoesLightweight running shoes with energy-returning properties.Put power in your stride. These women's running shoes have a springy boostâ„¢ midsole that returns energy with your every step. Light and breathable, they feature a stretch mesh upper reinforced with an elastic comfort band for a snug fit.Weight: 7.3 ounces (size 7); Runner type: natural; Stack height: 25.5 mm / 16.5 mm (9 mm differential)boost™'s energy-returning properties keep every step charged with an endless supply of light, fast energyTwo-tone tricot stretch mesh upper with synthetic suede trimsElastic comfort band stretches from midfoot around heelElastic laces for snug fitBlown rubber outsole for soft cushioningImported