My first bicycle (without training wheels) was one of those bikes with chopper handlebars and a banana seat. These were pretty comfy seats though I expect they weren't very aerodynamic since they were long. Mine was a really pretty shiny purple. I had this bike for a long time and was really proud of it. As you can see below, I got it for Christmas of 1965.
A wheelie bike, also called a muscle bike, high-riser, or banana bike, is a type of stylized children's bicycle designed in the 1960s to resemble a chopper motorcycle and characterized by ape hanger handlebars, a banana seat with sissy bar, and small (16-to-20-inch (410 to 510 mm)) wheels. In 1963, Schwinn introduced the Sting-Ray, the first bike with a 'banana' seat and high-rise handlebars.