This  racing suit was made in the late 1950s or early 1960s by Cambridge Ltd. / Scioto.  It was designed and endorsed by legendary swim and dive coach Mike Peppe and bears his name. It is 60% acetate, 30% cotton and 10% rubber, the end result of which is a fine, slightly stiff, fabric, which stretched horizontally, but not vertically.  There is a false fly, a drawstring waist and a cotton front lining.  These were sold as racing / competition suits at the time. It is marked a size 28.