The Free Metcon 6 athletic sneakers open your world of workout possibilities. Nike added more forefoot flexibility to this adaptable trainer and reinforced the heel with extra foam for dynamic movements. The outsole is laser-siped for better flexibility. More foam was added in the heel for improved stability. Laser-siped foam in the forefoot and midsole offers flexibility and comfort. The upper is made of breathable, supportive engineered mesh with built-in stretch where needed. Flywire cables give you a dynamic fit and help keep you secure. The multi-surface traction pattern is made for any workout surface and activity. These are lace up sneakers.