Featuring rolling rails along the outsole, these women's High-Performance Nike shoes provide a smooth, stable roll-through with heel to toe transition. You'll enjoy staying active in these Nike Air Miler Walk+ 2 walking shoes. In black/fireberry. Shoe Technologies: Mesh upper and durable overlays provide breathability and support. Full-length Phylon midsole with a Max Air unit in the heel ensures maximum impact protection. Forefoot pad offers additional cushioning. Shoe Construction: Mesh/manmade upper. Mesh lining. Phylon midsole. Rubber outsole. Shoe Details: Lace-up closure. Padded footbed.