Topo Athletic Tribute Running Shoe - Women's mesh 4 mm rubber outsole 7mm midsole 16 mm Total Stack Height / 0- drop Weight: 7.2 oz. ( M9) Super breathable mesh upper 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 Usage Recommendation: ideal for speed work, tempo runs, and fitness training.