The New Balance Vazee Rush v2 running shoe offers cushioning without slowing you down. This new model still gives neutral runners a lightweight shoe to take on training and race day with ease. The breathable, no-sew upper is still comfortable and fast. Rapid Rebound technology gives runners a responsive feel without adding unnecessary weight. Upper: No-sew application and flat laces reduce irritation. Bootie Construction wraps over and around the foot to create a snug, sleek feel. Mesh provides breathable flexibility.Midsole: Injected RAPID REBOUND offers a lightweight, yet highly responsive ride compared to normal foam midsole. Molded sockliner provides light, underfoot comfort.Outsole: Deconstructed Heel Counter easily flexes for a better freedom of motion. Lightweight solid rubber outsole provides traction and durability without the extra weight.