The 361 Degree® Spinject offers neutral runners a stylish and more adaptive running shoe for comfortable, everyday running. This new addition features a seamless, knitted upper and Fitz-Rite midfoot technology that fits more securely around the foot. The resilient and responsive QU!KFOAM™ cushioning and QDP™ System technologies provide comfort and shock absorption for the long run. QU!K Flex 4foot engineering creates a more natural, close-the-ground feel. Upper: A seamless knit upper with Fitz-Rite midfoot has soft internal webbing that holds the foot securely. Pressure Free Tongue and heel collar enhance comfort. Lace-up front offers an adjustable fit. Midsole: QU!KFOAM™ midsole maximizes and maintains responsive flexible cushioning. Removable insole. Outsole: Lightweight blown rubber forefoot with QU!K Flex 4foot engineering provides a more natural, balance toe off and enhances ground contact for better acceleration.