Quick view FATSAC FatSac Fat Seat Ballast Bag - 1,250Lbs - Gray FatSac Fat Seat Ballast Bag - 1,250Lbs - GrayThe 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... Now: $579.99 MSRP: Was: Add to Cart