The Free Metcon 6 workout shoes support every movement with even more forefoot flexibility and a reinforced heel with extra foam. The outsole is laser-siped for better flexibility. The big-toe side of the forefoot is rounded for better agility and quickness when making sudden movements. More foam is added in the heel for improved stability. Laser-siped foam in the forefoot and midsole offers comfort. The upper is made of breathable, supportive engineered mesh with built-in stretch where needed. Flywire cables give a dynamic fit and help keep you secure during your workout. The multi-surface traction pattern is made for any workout surface and activity. A comfortable inner sleeve increases ankle support and provides a more seamless fit. These athletic Nike shoes have lace up fastening.