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 (NO ORIGINAL BOX)