simms men's freestone wading boots, rubber sole fishing boots, dark olive, 13 simms navigating strong currents and slippery rock river beds is part of the experience. our freestone boot has a proven record of durability and traction in rocky rivers around the world. it provides the support underfoot and at the ankle for negotiating slick, unseen river bottoms. the synthetic uppers take the abuse of brush, rock and water in stride, while a cushioned midsole and partial neoprene lining provide all-day cushioning and warmth.