For over the shoe - fits mens' sizes 11-13","Injection molded seamless construction for 100% waterproof protection","Injection molding puts less material in the upper eliminating unnecessary weight for reduced leg fatigue","For longer life more material is added to the sole at the greatest wear points: the heel toe and cleats","Thicker tread has deeper cleats with sharper edges for more traction","Heavy duty heel kick-off for easy off