Included photo from when on my Vespa and photo from maker's website (blue vespa)
From Manufacturer's website, Sells for $499:
Nathaniel Briggs Seats for Vespa ET2, ET4, LX, LXV, and S models. These seats are designed around form and function with no compromise to style. The seat is 1 inch lower and 3 inches narrower at the front. This allows riders with a shorter inseam to comfortably hold up their Vespa at a stop.