Dryshods Mens Arctic Storm Extreme-Cold Conditions Winter Boots have a total of11mm of insulated warmthand protection for the coldest days. These insulated bootsare 100% waterproof and feature5.5mmDensoprene foam insulation, 2mm breathable mesh linings, and 2mm warm fleece. Theyre made of genuine, hand-laid natural rubber (no PVC, polyurethane, or TPR) and have extra rubber reinforcements in the toes and heels. A comfort range of -50F to 65F takes you through the coldest seasons. 4-way-stretch construction and breathable mesh linings keep feet dry. Roll-down calf pipes let you tuck in your pants or vent your legs. The work boots feature nylon shanks, molded outsoles for outstanding traction, cold-blocking EVA midsoles, and removable EVA sockliners. Ideal for outdoor work in the mud, muck, snow, and slush. Imported. Mens whole sizes: 8-13. Color: Black. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.