The Topo Athletic Men's Aura 2 Running Shoe in Charcoal / Green delivers Topo Athletic's signature roomy toe box and natural, low-drop ride for road running. Engineered for runners who want comfort, stability, and a secure midfoot lock, the Aura 2 keeps you moving mile after mile. Anatomical, roomy toe box lets toes splay naturally Low, comfortable heel-to-toe drop for a natural stride Cushioned, responsive midsole for all-day comfort Breathable engineered mesh upper Durable rubber outsole with reliable traction Heel-to-Toe Drop: 5 mm Stack Height: 38 mm heel/33 mm forefoot Shoe Weight: 10.6 ounces/303g (Men's Size 9) Surface: Road Midsole Material: ZipFoam Best For: Daily training, long runs, walking