A fully considered update to one of the most capable, comfortable wading boots in the Simms line, the new FlyweightA(R) Boot is a balanced blend of lightweight, travel-ready performance, trusted felt traction, and the kind of no-quit durability that goes the distance. Product Features: Durable and lightweight, TPU-based synthetic woven upper material Molded, rubber toe wrap, and abrasion panels to protect against wear and tear High cushion dual-density EVA midsole for comfort and stability Drain holes included in the boot so water does not stay trapped The outsole is compatible with Simms Alumibite Star cleats and Hardbite Studs Simms 10 mm felt outsole with re-soling available