Men's Frogg Toggs River Flip Flop Sandals 647484-4RS011 Frogg Toggs River Sandal Shoe is built for action and features waterproof nylon webbing atop a rugged synthetic upper. Ultra-cushioned, supportive midsoles rest on non-marking rubber outsoles for superior comfort and traction. The waterproof River Sandal Shoe comes with an adjustable back strap and elastic cords for a personalized, secure fit on every outing. Features Ultra cushioned midsoles on top of non-marking rubber outsoles featuring a super-gripping traction design Adjustable back strap and elastic cords for adjustment and a comfortable fit Adventures await with these new durable and comfortable sandals Features waterproof nylon webbing on top of a comfortable synthetic upper that secures the foot in comfort and safety Men's Frogg Toggs River Flip Flop Sandals