Le Pera Silhouette Solo Seat For Harley More of a rounded shape compared to the Bare Bones, the Silhouette Solo creates a stylized line from tank to fender. The Silhouette has more back support, 1/4 thicker and a more rounded, contoured shape compared to the Bare Bones. Features: Molded one-piece foam foundation Covered with premium-grade vinyl Seat base plate is 16-gauge powdercoated steel Carpeted seat bottom protects the fender