Help keep trails open and your rig clean with this TRAILS Magazine branded TrailSac from SpiderWebShade. Keep your rig clean too by tossing out your own trash as well as kid's dirty clothes, wet towels, anything that will make the inside of your rig foul and smelly. The best part is you empty it at home or a proper trash receptacle and then hose the bag off, ready for the next adventure. It measures 18" wide, 30" tall and includes two 8" SpiderBalls for hanging off your tire carrier, tailgate or roll cage. Use your imagination. The two upper grommets will also accept bungee cords or straps.