In article ,
Phil Cook wrote:

The breathing action of Goretex works best in dry conditions, once it
is wet outside you can't pump enough water vapour through it to keep
dry inside. Its benefits in leather footwear are dubious beyond the
box ticking much favoured by advertisers.

Yes. Until and unless the leather breaks down enough to start
letting water through in large amounts. I had to get rid of one
pair of boots where that happened.

The liner will keep liquid water in equally well as out. The usual
failure mode of the membrane is grit or toenail punctures. Of course
the boot and its liner has a great big hole in it from the start, how
else would you get your foot in?

A simple problem in four dimensional topology :-)


Regards,
Nick Maclaren.