The Nike Zoom Metcon Turbo 2 brings a dose of adrenalin to your daily workout. It combines stability, responsiveness and lightness to help you move fast during circuit training sessions, high-intensity intervals on the treadmill, speed cardio sessions on your way home from work and anything else you can think of. From the Zoom Air underfoot cushioning to the instep grip reinforcement, every detail has been streamlined to keep weight down while maximizing the shoe's functionality and durability. Lighter, more resistant materials are designed for greater speed and power. The Zoom Air unit is lightweight and high-performance, ideal for fast, repetitive movements such as step jumps and skipping rope. It propels you through the air on impulses and cushions your landings. The lightweight, high-performance Nike React foam is ideal for fast, repetitive movements such as step jumps and skipping rope. It propels you through the air on impulses and cushions your landings. At instep level, the upper is thin and light, yet sturdy enough to resist friction. The outer mesh provides breathability durant even the most intense sets. Your favorite features, such as the anti-abrasion envelope and heel clip for headstands, have been redesigned and streamlined to make them lighter. You benefit from the same functions and durability, but with less weight. The wide, flat heel enhances stability. The rubber sole provides grip and flexibility for comfortable foot movement.