One-Piece Tripper Fastback™, Harley-Davidson® Sportster 3.3 gal & 4.5 gal tank 2004 - Up. The Tripper Fastback™ offers a super clean, custom style, cut low for the rider with good back support.
The seat is tapered in back but still offers a reasonable degree of passenger comfort.
Seat also fits the Sportster Forty-Eight and the Nightster.