Oboz Bozeman Mid Insulated Waterproof Men's Boot. Inspired by Bozeman winters, and thoughtfully built using recycled and durable materials, our Bozeman Mid Insulated Waterproof features waterproof oiled nubuck leather, an abrasion-resistant ripstop textile, 200g of PrimaLoft® Bio insulation, and a winter rubber compound. Model: 85401. Inspired by Bozeman winters, and thoughtfully built using recycled and durable materials, our Bozeman Mid Insulated Waterproof features waterproof oiled nubuck leather, an abrasion-resistant ripstop textile, 200g of PrimaLoft® Bio insulation, and a winter rubber compound..