According to what I.R. told my G.F. this morning you can replace the neoprene with a latex gasket. Sounded like they offer gasket replacement, sucks they didn't sound to eager to help ya out though.
Just ordered one myself, wanted a full on dry suite, but at that price I can deal with upgrading with a latex neck gasket if I need to.
Was using a 2 piece dry suite before with ir semi dry top, wasn't to bad, did start to feel leaks after a minute or so if I was swimming.
"Like a bunch of monkey's, trying to fuck a football."