The ATV-Tek Expedition Cargo Bag is the best!! There is plenty of room, easy to use, well built, and the framework make it very sturdy and light weight. I had zipper units in the past and the dust just made it impossible to use because the zippers would stick and not zip up. I have two identical 4 wheelers and I purchased two ATV-Tek Expedition Cargo Bags, both are great. I have used the bag both on the front and back with great results.