Best for: Weightlifting, high-intensity training, rope climbs, and sled pulls. The Metcon 1 is a trainer from Nike that provides stability, flexibility, lockdown, and durability. The minimal heel-toe drop is ideal for cross training activities, while the flex grooves allow the athlete to move naturally without any hesitation. Overall the Metcon 1 is a straight performance model that looks to be on the feet of athletes during their workouts. Gently used condition, lots of life left.