Biltwell SL-VIN-00-BS Slimline Solo Seat (With Smooth Hand-Stitched Cover, for Custom Applications) For custom applications Same features and construction as Solo seats with a deeper side profile contour for bikes with steep backbones Heavy-gauge stamped steel pan with gently sloping rear kick for added support Stamped-in ridges on the pan increase stiffness and give the pan a clean, classic look with a matte black electroplated finish Foam is molded polyurethane, approximately 1" thick. Uncovered seat also available to allow riders to customize to their liking