"Pack it in Pack it out" this is the motto for leaving the campsite and trial as clean or cleaner than you found it. The Trasharoo trash collection bag is the perfect way to carry trash on 4x4's off the trail or away from the campsite, beacuse it is on the back of the vehichle away from the seats and the inside. It is a quality made heavy duty canvas designed to have a plastic trash bag insert to keep things contained and clean inside the Trasharoo bag. Fits over tire sizes up to a whopping 40".