Rubber sole Style#: CU4752-100 The Max Air 270 unit delivers unrivaled, all-day comfort and combines with Nike React technology for lightweight cushioning and flexibility. The tortoiseshell Swoosh, tongue and heel serve as the perfect accessories for your outfit??wild enough to stand out and collected enough to wear everyday. Heel-to-toe rubber adds traction and durability. The soft, padded collar with low-cut design feels comfortable while looking sleek.