Loose Jons are available in either riveted or welded Jons. See your dealer for details about customizing your loose jon with the options available from consoles to floor inserts to storage boxes and more. GATOR TOUGH LOOSE JONS Rugged jon boats for any adventure Welded construction provides a solid, leak-resistant hull that stands up to heavy use. Built to withstand harsh conditions, from shallow rivers to rugged backwaters.