Start your journey in the 2026 Jayco Seismic 399 — where comfort meets adventure. Perfect for family getaways — sleeps 8 comfortably. Your mobile kitchen includes all the essentials for breakfast, lunch, or dinner. Host guests or kick back after a long day in this flexible lounge. Clean up after a long day in this cozy and well-designed bath area. Travel through any climate with confidence using reliable HVAC systems. Enjoy the convenience of dedicated space for kitchenware, clothing, and tech. Generous water storage supports cooking, bathing, and cleanup. Enjoy the view or tailgate in comfort with outdoor features designed for fun. Contact Lonestar North or stop by our Houston location to explore this unit.