Comfort and speed combine in the Altra Vanish Carbon 2. This incredibly light and fast shoe is perfect for races and fast training runs. It is full of bouncy, responsive foam and a carbon plate to give you a cushioned, yet propulsive ride. Plus, it has all of the Altra signature features—a wide toe box gives your toes room to splay and a zero heel-to-toe drop lets you run as naturally as possible, as fast as possible. You’ll race past the competition in the Altra Vanish Carbon 2. Details Upper: Incredibly lightweight mesh keeps the shoe light and breathable. It has Altra’s Slim Footshape™ Fit, giving you plenty of lockdown around the midfoot as you race. Midsole: Altra’s Ego™ Pro cushion provides a soft, yet responsive ride. Altra increased the amount of cushion underfoot (as well as the stack height) to provide more comfort and durability on the run. A new full-length carbon fiber plate delivers a 14% increase in asymmetry to give you a more natural stride while still propelling you forward. This combination also gives you improved flexibility.