Natural Rubber Work Overshoes Stretch Easily Over the Bulkiest Of Workshoes. With its reinforced heel and toe, Tingley’s 100% waterproof Rubber Work Overshoes are designed to stand up to tough daily wear. They stretch easily over your shoes and have excellent tear resistance for more durability and better comfort. They won't crack or stiffen in the coldest of weather and feature a convenient heavy duty heel kick-off cleat for easy no hands removal. The sturdy molded in rubber button on boot styles provides secure closure. No lining for easy cleaning and decontamination. More material in heel, toe, and sole gives longer wear while less material in the upper results in lighter weight and reduced leg fatigue. Fits over most larger work shoe styles, including steel toe work boots.