Free Overnight Shipping - Get ready to wear the most comfortable running shoes ever made. Not only do they look and feel spectacular, you're competition will admire them when you leave them in your dust. Full length ProGrid system allows for extra cushioning and shock absorption. Respon-Tek platform responds to every stride for a smoother heel/toe transition. TPU plate transitions you quickly from heel to forefoot. Forefoot plate allows you to propel forward as efficiently as possible. Maximum cushioning allows you to run longer and faster. Climate management keeps your shoes drier for superior comfort. Fabric cools AND warms to maintain your feet at at pleasant 82 degrees. Mesh layer helps prevent blisters. Rubber outsole provides long lasting, durable traction. Running.