With a new and improved, single-layer mesh upper and internal, seamless notched bootie, the Air Zoom Pegasus is more comfortable than ever before. Dynamic Flywire in the upper offers secure, lightweight lockdown and comfort. Zoom unit in the heel combines with an all-new, full-length cushlon foam midsole for soft, responsive cushioning and extreme flexibility. Environmentally preferred, solid-rubber outsole features Nike's classic Waffle pattern for durable traction and lateral rash rails to soften impact and create a smooth ride. Wt. 8.8 oz.