Design: 3D Fit Print technology on the upper provides a strategic balance of stretch and structure for a secure fit without feeling stiff GuideRails(R) holistic support system supports your body in its natural motion path while keeping excess movement in check Unique forefoot construction accommodates orthotics and high-volume feet Roomy, comfortable fit In-Shoe Comfort: Soft, nitrogen-infused DNA LOFT v3 cushioning is long-lasting and adaptable, helping to protect the body from impact Durability & Traction: Blown rubber outsole is responsive and durable HPR in heel provides durability against wear and tear Additional Details: Weight: 11.1 oz One-piece outsole keeps the shoe from flexing too much, a benefit for some runners with pedorthic needs