The Nike Free Metcon 6 workout shoes are designed with forefoot flexibility and the heel is reinforced with extra foam, which allows for dynamic movements during plyos and cardio classes, plus a stable base for weights. The outsole is laser-siped for better flexibility, and 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. The upper is made of breathable, supportive engineered mesh with built-in stretch. The shoes feature lace-up fastening and a multi-surface traction pattern. They provide comfort, ankle support, and a more seamless fit.