The Finer Details The Pegasus 40 has neutral support. It gives you balance, whether you're a heel or forefoot striker. Feel connected to the ground with Nike React technology, a lightweight, durable foam that delivers a comfortable, responsive ride. Nike React technology with 2 Zoom Air units (1 in the forefoot and the heel) to give you a bouncy, springy sensation and an energized feel at toe-off. A highly tuned single layer mesh creates an inviting feel and fit. We redesigned the midfoot strap for a more molded fit to the foot, shaped for all sized arches. Nike Womens Air Zoom Pegasus 40