Roxy WarmFlight 3 with 200 gram thermal insulation weather rated to -40 degrees C/-40 degrees F, Water resistant treated genuine leather and suede, Scotchgardâ„¢ treated materials, Lace up with D-rings, Gusseted tongue with padded collar, Sherpa collar at opening edge, Sherpa lining with squishy TPE insole for all day comfort, 82% Leather, 16% Polyester 2% Metal.