Catharine Cellier-Smart Jul 16, 2012:

Dry or wet? Are we talking about drysuits or wet suits here?

Philippa Smith Jul 16, 2012:

Oops, forgot the url for the 2nd reference:
http://www.wetsuitwearhouse.com/page/WW/CTGY/custom-wetsuits

Philippa Smith Jul 16, 2012:

Tricky to find (I've never translated it but have been looking it up in a stubborn attempt to find some sort of answer for your question!): I thought Kashew's suggestion seemed good, but it doesn't get many hits. "Split" as an appropriate term fits with this explanation:
"The thickness of your wet suit should be base the water temperature.
Tropical water divers usually wear a 3/2mm dive wetsuits or less. A split thickness in a wet suit means the core of the body has the thickest neoprene and the arms and legs have the lighter thickness. For example a 3/2mm wetsuit has 2mm neoprene in the arms and lower legs and 3mm in the torso and upper legs. For cooler waters a 3mm or thicker is always recommended."
http://www.diversdirect.com/scuba/scuba-wetsuits/

But as you say, the hits are not convincing for split neoprene. Could it be referring to the stretch factor?

"The type of neoprene used impacts flexibility, and there are 3 types of neoprene used in wetsuits. Standard Neoprene, Super Stretch Neoprene, and Super Stretch Water Repellant Neoprene."

Groping in the dark really, it's a very specialised area - you need a diving translator!