The days of compromising speed for stability are over. The Motion 6 has the new Newtonium foam cushioning that provides more responsive cushioning that is closer to your foot! It still features Newton's EMB (extended medial bridge) platform which offers more functional support for runners with medial side pronation or a flatter arch. The Motion 6 pairs a lightweight, breathable mesh upper and a new 4-way stretch mesh metatarsal panel making it a comfortable shoe for everyone. This model is ideal for high mileage endurance training and racing. The performance of a Gravity in a stability package....no compromises!