Duh Duh...
Think about it some more!, neoprene is 'CLOSED CELL', airtight and watertight, not gonna soak up much water eh?. the idea is to
STOP AIR hitting the cold surface and forming WATER, by condensing, therby having , No drip, No drip, No drip...
You think having a wet~sponge on your PC is a good idea?
...
Peace dude!...