This style fits true to size, order your normal size. Designed in QC Upper: Synthetic leather with functional zipper Lining: Extra warm synthetic sherpa with HEAT-MX insulation and breathable waterproof membrane Lining of insock: Textile fabric Insole: Moulded EVA cushioning for added comfort, support and shock absorbency. Removable for easy replacement, if needed. Outsole: Durable TPR with high traction sole engraving Oval toe Vegan Cold Rated -25 ºC Waterproof