Dryshod Arctic Storm Extreme-Cold Conditions Winter Boots Have A Total Of 12Mm Of Insulated Warmth And Protection For The Coldest Days. These Dryshod Insulated Boots Are 100% Waterproof, With 5.5Mm Densoprene Foam Insulation With 2Mm Airmesh Lining And 2Mm Warm Fleece. They're Made Of Genuine, Hand-Laid Natural Rubber (No Pvc, Pu, Or Tpr) And Have Extra Rubber Reinforcements In The Toes And Heels. A Comfort Range Of -50?F To 65?F Takes You Through The Coldest Seasons. 4-Way Stretch Construction And Air Mesh Lining 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. Dryshod Arctic Storm Extreme-Cold Conditions Winter Boots For Men Are Ideal For Outdoor Work In The Mud, Muck, Snow, And Slush. Imported.