A new addition to the lineup of Straight Line’s Sumo Max ballast bags, the 600 Flat Sac Ballast Bag is designed to sit on the floor area of any v-drive boat. This space of the boat is typically not used but is a great spot to add more weight for a bigger, better wake. The Sumo Max Series is the fastest portable bag and pump system on the market, making it quick and easy to fill/drain your ballast bags.