This style fits true to size, order your normal size. If you are between sizes, we suggest to order the next size up. Cold rating: -30C Waterproof Upper: Heat fused synthetic with knitted upper with 3M Scotchlite reflective trims. Protective bellows tongue. Lining: Foam backed textile with 200 grams of 3M Thinsulate insulation and breathable waterproof membrane Lining of insock: Foam padded brushed textile for added comfort Insole: Moulded EVA cushioning for added comfort, support and shock absorbency. Additional heel cup to help align foot. Removable for easy replacement, if needed. Outsole: Durable non-marking rubber with high traction and slip resistant sole engraving Midsole: Lightweight compressed EVA offering extra cushioning and insulation Round toe with rubber protective