They’re “water friendly”, if you’re only wearing water friendly clothes, the effect of wetness on morale is based on abient temperature, basically if it’s warm it’s a mildly good thing, and if it’s cold it’s bad. Wearing non water friendly clothes means you use the old system where it’s strictly bad.
Wetsuits in particular are quite warm and have extensive coverage.
There’s no special treatment for the wetsuit “water pocket” effect.