I got it on Ebay. It's made by a company in Colorado named Avidmax. It's official name is exercise bike seat. They are about $45 and yes you can ride all day. I know it's not period correct, but I can't deal with the old seats. Worth every penny!
Thanks. They wouldn't look right on just anything, but I knew that would work on this old rat. Check out my Western Flyer jet tank bike. It's on another post called Jeff and Michelle's bikes.