2023 Sea-Doo Switch Sport 21

The 2023 Sea-Doo Switch Sport 21 is a 20-foot pontoon with a composite tri-hull design rather than traditional aluminum tubes. Its three V-bottom hulls are built from PolyTec, a proprietary polypropylene and fiberglass composite. The dominant center hull, which sits 7 inches deeper than the outer hulls, mirrors the shape of a Sea-Doo personal watercraft and contains the engine, fuel tank, and jet pump. The outer hulls feature individual compartments filled with closed-cell foam for flotation.

The boat's modular construction allows different segments to be added between the center, bow, and stern sections, creating the specific model length. Bolted cross members secure the structure together. Powered by a single 230-horsepower Rotax engine, the Switch Sport 21 reaches speeds up to 38 mph.