Nike Women's Free Metcon 6 Training Shoes Color: Vintage Green Shoe Width: Medium/B Upper is made of breathable, supportive engineered mesh with built-in stretch where needed during dynamic movements, like lunging, squatting and jumping Flywire cables give you a dynamic fit and help keep you secure during your workout Rounded the big-toe side of the forefoot for better agility during any sudden movements Combination of tuned support and intentionally placed cushioning helps you feel secure with every step