The Free Metcon 6 training sneakers feature flexibility and a reinforced heel. Designed for dynamic movements during plyos and cardio, they also provide a stable base for weights. The outsole is laser-siped for better flexibility. More foam has been added in the heel for improved stability. Laser-siped foam in the forefoot and midsole offer flexibility and comfort. The upper is made of breathable, supportive engineered mesh with stretch. Flywire cables give you a secure fit. The multi-surface traction pattern is made for any workout surface and activity.