My neoprene waders (mini skirt - he he) is made of closed cell neoprene, (known for its insulating properties) and used in both wet and dry (fry) suits.
Great, very comprehensive info. I don't know anything about this subject and I am still trying to make decision on what I will be wearing this winter (& why I was keen for this thread not to descend into a slanging match) I would be happy to consider a (hopefully)less expensive alternative to dry suits or the Palm Sidewinder Bib that fits my Palm Aleutian cag (both just short of £200) if they are as good/safe as you claim. But I'm still a bit unclear about the nature of neoprene. Am I right in thinking there is more than one type i.e one that lets water in (wet suits) and one that doesn't (waders)?
Do you have any recommendations/links to UK wader manufacturers?