Spare Air 170PKX Xtreme Dual Sport PackageThe 1. 7 Spare Air Xtreme Dual Sport Package is the smallest portable air source in the world! Perfect for kayaking, surfing, or any water sport. Designed to get you to the surface in the event of an emergency, just pop it in your mouth and breath! Nothing could be simpler, and simple is best in any emergency situation. Spare Air is the preferred choice of both professional and sport divers for a very good reason. It saves lives! Self contained and