Why would a leather jacket go mouldy?

A leather jacket can go mouldy if it is exposed to high humidity or moisture for prolonged periods, as mould thrives in damp environments. Poor ventilation and lack of proper storage can also contribute to mould growth. Additionally, if the leather is not cleaned and conditioned regularly, organic materials like sweat or oils can create a favorable environment for mould. To prevent mould, it's essential to store leather in a cool, dry place and ensure it is properly maintained.