For the gal who works out hard and appreciates looking good while doing so, there is the sleek, lightweight W1600 from New Balance. Part of the Heidi Klum for New Balance line. Breathable air mesh upper with synthetic overlays. FantomFit mesh upper cuts redundancy by using a skeletal frame. Designed to provide a glove-like fit. REVlite midsole offers superior responsiveness and durability at a 30% lighter weight than other foams with comparable performance. Differential: 8 mm ; Blow rubber outsole for reliable grip. Built on a NBJ last, which features reduced volume in the toe box width and depth, a lower instep height, and standard heel width. Imported. Measurements: ; Weight: 5 oz ; Product measurements were taken using size 8.5, width B - Medium. Please note that measurements may vary by size.