You'll be able to make the wetsuit working really well again, enough to allow you to avoid cold water temperatures.
You would special purpose wetsuits for it, which are made of neoprene and rubber. http://meamedworld.com/__media__/js/netsoltrademark.php?d=moderntimes.com%2F__media__%2Fjs%2Fnetsoltrademark.php%3Fd%3DClrobur.com%252Fbbs%252Fboard.php%253Fbo_table%253Dfree%2526wr_id%253D1940979