Silverback Paco PadAfter you sleep one night on a Jack's Plastic Welding Silverback Paco Pad, it is hard to imagine using anything else on the river or in the back of your truck. The Silverback is Jack's thickest paco, featuring a plush 4 inches of soft high density foam. Each Paco Pad is constructed with Heavy Duty, waterproof PVC (the same material used to build rafts) covering high density foam, and has a water tight, self inflating air valve. Simply press the