This style fits true to size, order your normal size. If you are between sizes, we suggest to order the next size up. Designed in QC Upper: Synthetic nubuck leather and textile fabric. Waterproof. With 3M Scotchlite reflective inserts Lining: Extra warm and comfortable soft sherpa fabric and foam backed textile with Heat Mx thermal insulation and full breathable waterproof membrane Lining of insock: Foam backed synthetic sherpa for added comfort Insole: Shock-absorbing EVA for added comfort and support Midsole: Insulating, lightweight, shock-absorbing compressed EVA with TPU support brace insert Outsole: Durable non-marking rubber with high traction sole engraving Molded bumper toe Cold Rated -30 ºC Waterproof Glow in the dark