When your workouts wade into the nitty gritty, the Nike Free Metcon 5 can meet you in the depths, help you dig deep to find that final ounce of force and come out of the other side on a high. It matches style with substance, forefoot flexibility with backend stability, perfect for flying through a cardio day or enhancing your agility. A revamped upper offers easier entry with a collar made just for your ankle. 100% Polyester.