wrinkles

So, I recently posted about trying to find my grail jacket: https://www.thefedoralounge.com/threads/schott-x-3sixteen-grail-jacket.104212/ And lo and behold, I did enough digging to make it happen. I was able to find a used one, but the sleeves have done some heavy creasing. Obviously, over...

Hello. I bought a L-2A (Alpha Industries Vintage) jacket. It came new inside the plastic bag but full of wrinkles. How can i remove the wrinkles without damage the outer shell? Best regards. Nuno Forte.