This style fits true to size, order your normal size. Designed in QC Upper: Synthetic leather Lining: Foam backed textile with 200 grams of 3M Thinsulate insulation and breathable waterproof membrane Lining of insock: Textile fabric Insole: Natural latex foam for superior shock absorbency, added comfort and support Midsole: Lightweight compressed EVA Outsole: Compressed EVA with non-marking rubber inserts. Lightweight and durable. Cold Rated -25 ºC Waterproof