The Simms Freestone boots have a water-repellent synthetic leather upper which minimizes water absorption and, as a result, weight when we are looking for an option that will not hold us back. When the water is cold we rely on the partial neoprene lining to insulate the foot and also makes it easy to put on and take off. Rubber outsole provides maximum traction with durable lugs designed for contact with the river bed. If we need extra grip Freestone is compatible with Hard Bite Star, Alumibite Star and Hardbite studs.