The outsole also has Nike’s trademark waffle-like design for added traction. The Nike Women’s Air Zoom Structure 24 Running Shoe is designed for a responsive cushioning and secure fit. The newly designed crash pad under the heel creates a cushioned, smooth transition from heel to toe. The engineered mesh upper is durable and the laces can be cinched down for a secure fit. The comfy tongue helps pad the laces and the moulded heel securely hugs your foot. The shoe has a soft and more durable lining around the heel and ankle to keep socks from bunching up when you run. The Zoom Air unit in the forefoot offers responsive cushioning and is combined with a foam midsole for a firm, yet smooth and stable feeling as your foot hits the ground. The rubber outsole is built for mileage and has grooves in the forefoot for flexibility and vertical grooves down the side for stability. The outsole also has Nike’s trademark waffle-like design for added traction.