Be prepared to crush that WOD with the Nike Metcon 6. These cross-training shoes are sturdy, stable and cooler than evermdashperfect for CrossfFit, HIIT classes or other workouts. A low, flat and wide heel in the Metcon allows a stable base for deadlifts and other weighted exercises. There is a removable Hyperlift insert, so you can adjust the height under your heel depending on the exercise and weight. The rubber tread on the outsole provides traction on the slick gym floor and the outsole extends up the sides so you have traction to climb ropes. The cushioning in the Metcon is perfect for high-impact movesmdashit is firmer in the heel so you have a secure feel and softer in the forefoot to cushion so you can get the most out of your workout. Finally, this is the most breathable version of the Nike Metcon yet, i. In fact Nike says it is 18 more breathable than the Metcon 5. The lightweight mesh keeps the air flowing as your workout heats up, and it is durable enough to stand up to the push and pull of heavily weighted and high-intensity workouts. So go ahead and do that additional squat, or climb higher on the rope in a pair of the Nike Metcon 6.