FATSAC V-drive Wakesurf Fat Sac Ballast Bag - 400lbs - Gray. These Wakeboard Bags from FATSAC have a special port in the side wall that allows you to easily add ballast to your V-Drive's surf baffle. The Y-connection on the bag makes it simple to connect to your surf baffle through the fat sac fill port so you don't have to deal with extra cables and wires. For a reliable way to add ballast to your V-drive choose the FATSAC Wake Surf Fat Sac 400lbs Ballast Bag. Specifications for FATSAC V-drive Wakesurf Fat Sac Ballast Bag: Manufacturer: FATSAC Color: Gray Features of FATSAC V-drive Wakesurf Fat Sac Ballast Bag V-drive Fat Sac 42 x 16 x 16 inches 400lbs Gray is the standard color option. Additional colors are available for a small fee. Package Contents: FATSAC V-drive Wakesurf Fat Sac Ballast Bag FATSAC W713-GRAY: V-drive Wakesurf Fat Sac Ballast Bag - 400lbs - Gray