The Free Metcon 6 workout shoes support dynamic movements during plyos and cardio classes, plus provide a stable base for weights. 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 has been added in the heel for improved stability. Laser-siped foam is featured in the forefoot and midsole for comfort. The upper is made of breathable, supportive engineered mesh with built-in stretch. Flywire cables give you a dynamic fit and help keep you secure during your workout. The multi-surface traction pattern is made for any workout surface and activity. The comfortable inner sleeve increases ankle support and provides a more seamless fit. These Nike sneakers feature lace up fastening.