FATSAC Fat Seat Ballast Bag - 1,250Lbs - Gray [W710-GRAY]Fat Seat Ballast Bag 1,250Lbs Gray The FATSAC Fat Seat Sac is designed to add a massive amount of weight to direct drive boats that have a removable rear seat. The FATSAC Fat Seat Sac is designed for inboard boats that have a removable rear seat. The Fat Seat is huge and it's strong enough to sit and walk on. It has two arms that extend forward on either side of the engine compartment to add even more weight to the stern of the boat. Unlike the more