The product is 100% waterproof. Natural hand-lasted rubber and a four way stretch inner bootie. Non-slip non-marking and self-cleaning outsole. Contour fit for maximum support and movement. Comfort rated to -40F. Waterproof and warm to minus 40 degrees Fahrenheit, the Classic High boot from Bogs features a Neoprene upper and a removable, moisture-wicking sockliner to reduce heat and eliminate odor. A non-slip rubber outsole delivers excellent grip on wet surfaces, and its internal shank offer enhanced support. This is a superb choice for trekking through foul weather, wherever your adventures may take you. Urban and outdoor enthusiasts love Bogs. Always waterproof and warm, they walk comfortably, breathe naturally and combine modern style with rugged construction. Both the popular classics and the new MT series are available with waterproof breathable uppers. Everything we sell is backed with a 100% satisfaction guarantee. Enjoy.