These shoes are going to feel cushioned and comfortable, but also light and breathable. Why? Because when you never slow down, that's what you need. Lightweight, breathable mesh upper. TPU heel overlay for added durability & support. Enhanced cushioning around ankle collar for superior comfort. Full-length EVA sockliner for added comfort & a custom fit. Cushioned EVA midsole delivers a lightweight & responsive ride. Durable outsole with slightly raised rubber knobs for added grip & traction.