Oboz Men's Big Sky II Insulated Waterproof High Top Pull on Boots - With 200g of PrimaLoft Bio insulation, Vibram Megagrip to keep you planted on cold, wet ground, and waterproof full-grain leather, the 11in Big Sky II High provides the support and warmth you need. Featuring stretch panels and pull loops for easy entry. Waterproof full-grain leather 200g PrimaLoft BIO insulation B-DRY Waterproof membrane Stretch gore panels Molded rubber heel kick Style: 86001