PURPOSE-BUILT STABILITY AND GUIDANCE - The Topo Athletic Ultrafly 5 road running shoes are an all-purpose running shoe featuring light pronation support, designed to assist road runners who need mild guidance for better alignment, ensuring stability and efficiency with every stride ENHANCED CUSHIONING FOR COMFORT - Featuring a new 30 x 25 mm platform, these road running shoes now include 2 mm of additional cushioning, delivering extra comfort and improved impact absorption during long runs or high-mileage training RESPONSIVE ZIPFOAM TECHNOLOGY - Our latest ZipFoam formula offers a softer, lighter, and more responsive midsole, creating an exceptional balance of comfort and performance that adapts to your pace and running style in these road running sneakers (SIZE 7.5 HAS NO ORIGINAL BOX)