Propet Illia is a stylish and cozy cold weather boot. These winter shoes have nylon and suede uppers, faux fur lining, heat-retaining insole and rubber outsole. Stay dry with a waterproof design, supported with 2 side zippers and comfortable with a wide and rounded toe box. Nylon and Suede Upper. Faux Fur Lining. Twin Zippers. Heat-Retaining Insole. Rubber Outsole.