Boss black PVC gloves in size Large, the gloves a lot of pitmasters grab for pulling hot meat.
They're fully coated and lined with cloth, so you can pull a pork butt or handle a hot brisket, then rinse them clean afterward. They're 18 inches long overall with a 10 inch extended cuff, which keeps juice and grease off your wrists and forearms.
They're also good for the dirty jobs around the pit: scrubbing grates, degreasing the cooker and dumping the grease bucket.
For moving hot grates, charcoal or cast iron: Boss Blue Leather High Heat Gloves.