i believe its around 500 lbs the problem is that we can't fill it all the way because our seats don't have a tall enough space underneath them otherwise i really like the setup
The sac when full will hold 800+lbs. but most of our customers said they only get between 500lbs. and 700lbs. because of space restraints. In my opinion it is the perfect sac and will fill the entire amount of spare room under the seats. Once its full put a couple of people up in the bow and go for it.