Now featuring 3M Thinsulate 400g Insulation to keep your feet warm and dry in cold weather! The Safety Girl II Insulated Work Boot – Light Pink features 400g of Thinsulate insulation that will keep your feet warm and dry throughout your long workday. Each boot is made of nubuck leather and features a double color outsole that is oil resistant. The inside of the boot features a water resistant membrane to lock-out water.