I have found what is 95% my perfect boilersuit in Whistles sale. Fits so perfectly... except that it's tight across the bust. So I need to have something I can wear under it and keep a button undone. I need it not to be something hot, or something that wil catch on the jumpsuit material (denim). I think I want a silk(?), fitted, vest (ideally cropped). But I can't find anything like that. Any ideas/experience?
(Alternatively, how easy is it to get something altered to have more room in the bust? Hard?)
TIA x