X Series With its long list of standard features–including our exclusive SPX PR25 Performance Package, Performance Shield, low-profile sport console, black anodized rails and deck trim, hydraulic steering, docking lights, a third tube and more –it’s easy to see why our X Series is one of the most family-friendly options on the water. It’s also one of the greatest values afloat. X Series SLZ The Sylvan X Series SLZ layout gives you three separate multi-position lounge areas, so the whole boat adapts to how you want to spend the day.