With an exterior made of waterproof neoprene and a lining of quick-drying pile, these boots are perfect for both wet and cold weather. Pull tab at the back for easy dressingOutsole in molded grip-sure rubber This style runs a bit small in size. We recommend you to size up for a comfortable fit. INSOLE LENGTHSize 36 = 233 mm Size 37 = 240 mm Size 38 = 247 mm Size 39 = 253 mm Size 40 = 260 mm Size 41 = 267 mm