Supportive doesn't even begin to describe the benefit of these shoes, but you'll know it from the first stride. 3D-fit upper conforms to the shape of your foot for a better fit. Stretch laces keep your foot secured. Sculpted lateral forefoot provides a more durable and stable platform. Pebax Fan Wave in the heel offers a smoother landing and transition. 10 mm offset and X10 midfoot landing area are great for heel and midfoot runners. Blown rubber outsole optimizes pressure distribution, durability, and cushioning. Wt. 9.4 oz.