As fast as fast can be is exactly what you will be when you throw things into overdrive with the U5000XC cross-country spike from New Balance! ; Ultralightweight mesh and synthetic upper materials. Lightly padded tongue and collar step-in comfort. Soft textile lining offers a great next-to-skin feel. REVlite midsole delivers optimal responsiveness and durability, while maintaining a lighter weight than comparable midsole materials. Four-spike configuration at the forefoot. DynaRide high-traction outsole is featherlight. Built on an RL-1 last. This last type features a standard toe box width and depth, as well as a standard instep height and heel width. Imported. Measurements: ; Weight: 6 oz ; Product measurements were taken using size Men's 11.5, Women's 13, width Medium. Please note that measurements may vary by size.