Found these on a Columbian site called MSPlasticos. Don't think I would be able to handle the bike with a girl dressed like that tightly hanging on to me!
Wow! Great pics all wrapped up in the plastic. I agree it would be tough to navigate the bike with a plastic clad partner hanging on! Does the company export? I did discover a similar rain suit called Proof semi opaque and ordered one. Thick smooth clear pvc, well built and robust. Sadly they may be sold out by now.
Actually checked the website and yes, they exist, and have the full line of colors. See http://www.msplasticos.com.co You can use the translator as well.