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Weighting your boat properly for wakesurfing can be an absolute pain. You have to figure out where to have the heavy kids sit and cousin Jimmy hates any hints that he might have put on a few pounds over the winter. Instead of dealing with those awkward conversations, snag a Straight Line Sumo Open Bow 500 Ballast Bag. With a massive 500lbs capacity, durable construction, and streamlined filling and draining process, the Sumo Open Bow Bag will give you the bigger, more balanced wake you're looking for.
Sumo Skin 1000D – SUMO Sacs are made with Straight Line's own flexible and puncture-resistant fabric,"SUMO Skin." It has a durable 1000D Polyester Core that is heat laminated to lightweight PVC skins with a bonding agent. This sandwich construction is 150% stronger in tearing tests and 37% higher in tensile strength than other sac manufacturers, making it the most durable ballast bag available.
500 lbs
63" x 48" x 8"
4 x 1" NPT Ports
LINK Valves – Straight Line's unique LINK™ System provides a hassle free connection to your SUMO pump, keeping your boat dry on the inside. The LINK™ Valve is watertight and can also be used as a convenient way to purge air from your bag.
1" NPT Valves – New and improved threaded valves provide a perfect water tight seal, and have been pressure tested up to 6 PSI. 1" NPT ports allow built in ballast systems to fill, drain, and vent quickly for hassle-free operation.
Fits Inside Walk Through Bow Compartments
SUMO Seams – Every SUMO Sac is double welded to ensure a watertight seal. Straight Line's SUMO Skin is overlapped and hot air welded. You can see the smooth and clean seams on the outside of every bag, and a second welding operation applies an inch wide sealing tape to the inside of every seam.