Topo Athletic ST-2 Running Shoes - Men's Mesh Roomy toe box Printed Upper Pattern Lightweight, Breathable Materials 0-Drop Platform WEIGHT: 6.9 OZ. (SIZE 9) Fully collapsible heel counter engineered to deliver a secure, sock-like fit. Allows for easy and efficient packing Lightweight mesh and printing techniques are used to eliminate seams and reduce weight. The foot-friendly shape allows toes to spread and splay naturally through your stride 0-drop, neutral EVA midsole. Carbon Rubber Outsole. Removable footbed. Usage Recommendation: ideal for speed work, tempo runs, and fitness training.