On Wed, 27 Aug 2014 17:24:32 +0100, nemo
wrote:

On 27/08/2014 12:37, Andrew wrote:
It sounds like they have got well soaked and either been dried too
quickly or worn again before they have dried naturally. This combined
with inadequate treatment of the dry leather with conditioner first,
then re-waterproofing, has caused the leather to crack.

Thanks for your response. Your suppositions are incorrect and unhelpful
in answering my request.

Once you've cracked the leather the fibres are all torn and nothing is
going to fix that. There is no cure in a bottle.
Perhaps that's incorrect and unhelpful, but tough.