• rbos@lemmy.ca
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    3 hours ago

    10 years without being oiled, i guess. The leather would dessicate, maybe?

    My soles have a cork layer that seems like it would crumble even if well treated.

    • TranscendentalEmpire@lemmy.today
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      1 hour ago

      Most likely they were stored in a warm and humid place. Polyurethane foam can get something called hydrolysis, where moisture breaks down the polymers in the foam.