Breathable Engineered stretch knit for all day comfort, fit, and support. Double layered TPU hot melt using two color striation on vamp and opaque rand. Polyester heel tab for easy entry. Ideal fit: Die-cut Ortholite footbed to enhance breathability and long term cushioning. Responsive cushioning: Injected pylon midsole for optimal rebound with every step. Steady Traction: Double rubber pod outsole to assist with abrasion and traction with each step.