MUCK APEX PRO BOOT MOSSY OAK COUNTRY DNA 12 The Apex Pro 13 inch boot features a Vibram all-terrain, multi-season outsole for year round stability in difficult environments. Features hand-laid vulcanized rubber in areas that need protection, without adding unnecessary weight. This boot is 100 percent waterproof and offers breathable mesh linings, moisture-wicking footbeds, and neoprene booties for comfort and performance.