12 IN SureFit OverbootDesigned with more room to protect bulkier leather footwear with wide toes, wedged outsoles, and knobby treads. Protection from snow, slush, salt, and other harsh elements. Dual compounding molds high-stretch uppers to long-wearing, slip-resistant outsoles. Reinforced design. Seamless molded construction. Wide Grip outsole. 100% waterproof.No. 11002B-M: Medium (9 to 10)No. 11002B-L: Large (11 to 13)No. 11002B-XL: Extra large (14 to 15)