Rubber sole Style#: CJ0277-400 FlyKnit Loft uses 3 forefoot layers. They combine for a lightweight, breathable and durable feel that keeps your foot comfortable. Nike React technology delivers a soft, responsive ride. It provides support for the 3 phases of a runner's stride—flexibility at toe-off, a smooth ride at mid-stance and cushioning at contact. Increased rubber at the outsole helps deliver better traction and durability. Molding around the heel keeps you feeling secure so you can focus on your route. The Nike React Phantom Run Flyknit 2 offers versatility for the everyday runner. Building on the foundation of its predecessor, the shoe expands on its laceless design by adding secure support that feels like it "disappears" on your foot. More foam means better cushioning, keeping you comfortable as you run.