Nash is considered one of the leaders in off-road.Rugged, high ground clearance travel trailers. They are a true 4- Season trailer with insulated and heated holding tanks.They use the Dexter E-Z lube axles with 15-inch aluminum wheels.The roof insulation is R-14 with an added R-15 reflective foil. Side walls are high density block foam insulation.Nash is built for extreme weather and road conditions.The 29S Nash is the largest bunk house model in their line.Lots of sleeping area in this unit with 2 large bunk beds and a master bed also a couch and dinette that makes into beds.Unit is equipped with 400-watt Solar system