Thanks! I do love her to bits, even though she feels rather delicate compared to a lot of my other 1/6 figures in this style.
For now the coat is lying carefully flattened out/folded along the correct pleat-lines (whilst Wanda is wearing it) in the box in the hopes that a few weeks in that position will do something.
The coat is a weird mix of plasticky nylon feeling lining, faux-suede and... This strange, thin, densely textured plastic material that's almost but not quite like pleather (most visible on the 'skirt' of the coat in the above photos), unfortunately it's the textured plastic that's got the massive crease. I've got a feeling the crease combined with the texture may end up interacting in unpleasant ways down the line. Whatever this fabric is made of, it's quite similar to the stretchy rubbery material Hot Toys tend to use whenever it's a superhero that's wearing the skintight, not-really-spandex, stuff the CGI people like to paint the models with these days, but it doesn't have quite the same elasticity/rubbery feel to it.