Topo Athletic St-3 Road Running Shoe features a new knit upper mesh pattern with fewer printed overlays. The new blucher- style upper offers a snug and secure fit through the midfoot. A 16mm, 0-drop platform is perfect for speedwork, tempo runs, and gym work. The rubber outsole pods are strategically placed to enhance traction and durability where it matters. The ST-3’s collapsible heel allows the shoe to pack ﬂat, making it a versatile run/workout shoe for travel Designed for Road Running Topo’s road collection was born from the belief that our bodies are uniquely designed to run with ease and efficiency. However, paved surfaces and concrete can sometimes work against us. Each product in this collection allows you to access varying levels of natural running, while offering additional features to address the repetitive impact and stress from road running.