Does anyone have advice on caring for a leather jacket? I have only had mine for a month, but it’s already starting to look a bit matte and dull rather than pitch black and shiny. It also has a few white marks (from the rain) but I’m scared to ruin the jacket by trying to clean it. Also it’s starting to lose its shape - it was quite structured but now it’s looser and prone to creasing around the arms/shoulders? Is this a storage issue? Any advice would be appreciated!