Product Details STURDY, STABLE AND COOLER THAN EVER. The most breathable version yet, the Nike Metcon 6 helps keep your foot cool when you're going full steam. It stands up to the push and pull of lifting and high-intensity workouts, delivering stability and durability. The Coolest Metcon Nearly 18% more breathable than the Metcon 5, this version has lightweight mesh that keeps air flowing and your foot cool. A durable screen print reinforces the mesh without sacrificing breathability. Stability Under Weight The low, flat and wide heel creates a stable base for weighted exercises. A removable Hyperlift insert lets you adjust the height under your heel from one set to the next. Durable Traction Rubber tread on the sole and up the side of the shoe provides traction on the ground and grip when you're climbing a rope. Diverse Cushioning Foam is firmer under the heel for a secure feel and softer in the forefoot to cushion high-impact moves. Nike Metcon 6