The Fusion Seat delivers superior comfort and support, hour after hour, day after day, year after year. The fabric and frame are fused together for consistent tension and no sagging. Features a recumbent seat bottom and adjustable seatback. Super simple assembly. The 360 Fusion Seat is for Frontier and UNLIMITED models only and includes the new Frontier/UNLIMITED Fusion Base. With 1" reinforced tubing and welded frame construction, this base is rock solid! Includes swivel & mounting hardware.