Thirtytwo Digger BootThe Thirtytwo Digger is built for the outdoor guy who wants a warm boot to see them through winter. Insulation provided by 3M Thinsulate, with a Full Grain Leather Upper and Ultra Grip Vibram Rubber Outsole, the digger is a great choice for winter walk-wear.1:1 LastingUltra Grip Vibram Rubber OutsoleEVA Foam CushioningFleece LinedGusseted Tongue3M Thinsulate InsulationTongue Tension+Full Grain Leather Upper Digger Boot