Waterproof and warm, this Classic Mid Boot from BOGS® features a neoprene upper and a removable sockliner that's been treated to eliminate odors. It also has a non-slip outsole for excellent grip on wet surfaces, along with an internal shank for stability, making it superior foul-weather footwear. The internal TPU shank provides a stable foundation. FEATURES: 100 percent waterproof four-way stretch neoprene upper boosts durability and protection Rear pull tab for easy entry 7mm of insulating neoprene rubber enhances upper warmth Aegis™ antimicrobial removable insole resists odors for sustained freshness Waterproof shell repels moisture for ultimate performance in the elements BOGS® non-marking performance outsole maximizes traction Comfort range of -35°F to 60°F Height: 11'' Weight: 4 lbs Shaft circumference: 16''