Navigator 5™ Glacier Trek Cleats Insulated Overshoes, Polyester/Polyurethane, Hook and Loop, Fits Men's 13 - 14.5Pair The outsoles, with 16 removable cleats per pair, provide excellent traction on ice and snow (not to be used on hard surfaces) Cleat wrench included with convenient internal pocket to keep wrench handy and available to change cleats on the job Expandable gaiter top can roll out to increase boot height to 20 inches 840 denier polyester polyester upper fabric with waterproof membrane 4mm polyurethane foam insulation for additional warmth 2. 5 mm