Released in late 2017, the Nike Metcon 4 sneaker boasts several updates from its predecessors. The low-profile upper features a reinforced textured print, as well as an increase to six eyelets for extra precision during high intensity training. The Flywire lockdown system remains, as well as the a durable side overlay that helps with stability, and the textured outsole that wraps up the side of the foot for coverage during rope climbs.