Thinsulate and fleece don't crush at all from pressure effects. They are not
closed cell. A wetsuit is and its bubbles will contract roughly proportional to
depth...

Geo

On Wed, 31 Jan 2001 10:35:31 -0500, Reg shaped the
electrons to say:

--Gee, I know the 14.7 psi per atm rule
--and each 10m is approx 1 atm
--I'm assuming that there IS air (or argon) in the suit.
--I still can't  "intuit"  that a wetsuit under a drysuit would crush THAT
--MUCH at reasonable recreational depths - even a bit beyond the 100/130ft
--level.
--Don't thinsulate and fleece crush as much or more ?
--
--OK, Navy divers have to be prepared to go deeper,
--I'm considering the rec/tech/wreck/week-ender Joe (or Reg).
--
--\Reg
-- 
-- 
--
--Ross Bench wrote:
--
--> > From Reg
--> > :Side question;  Why DON'T divers use wetsuits under drysuits ?
-->
--> The Navy tried that many, many, moons ago and found out
--> that the wetsuit underneath the drysuit would compress
--> at depth and no longer be able to provide insulation.