A zoned flat knit upper provides stretch, insulation and breathability where you need it. Added structure and thickness of foam in the collar for added strength and comfort when hitting the heel. The EVA outsole adds more bounce and flexibility to every step. Softer and lighter, the one-piece Flow midsole provides responsive and long-lasting cushioning. Flow technology ensures easier and more comfortable movement on any surface. The sole pattern is extremely durable and grippy for a smooth and natural tread.