Rothco 8 Extreme Cold Weather Hiking Boots 7 7. The boot features 600 gram Thermoblock insulation for extra warmth and protection while the Thermoplastic rubber outsole stays pliable even in the coldest conditions. With taped seams and waterproof suede you're sure to stay warm and dry. ISO 9001 Certified. WARNING: This product contains a chemical known to the State of California to cause cancer birth defects and other reproductive harm. Specifications for Rothco 8 Extreme Cold Weather Hiking Boots: Manufacturer: Rothco Gender: Unisex Color: Black Fabric/Material: Polyurethane Age Group: Adults Fastener/Closure Type: Laces Features of Rothco 8 Extreme Cold Weather Hiking Boots Material: Polyurethane Material Specs: Leather Polyurethane Weather: Cold Weather Package Contents: Rothco 8 Extreme Cold Weather Hiking Boots Rothco 8 Extreme Cold Weather Hiking Boots 7 5659-7