#68358 - Challenger 3 Inflatable Boat Rugged SUPER-TOUGH high-molecular vinyl construction. Super-Tough is a high molecular PVC that is unaffected by gasoline, oil and salt water. It is highly resistant to damage from abrasion, impact and sunlight. It also permits more air pressure for rigidity. Includes all-around grab-line, inflatable I-beam floor, grab handle at bow, welded oar locks and repair patch.