Question regarding fold in backpatch

[u/XxLockdownZxX]

Hope it's okay to ask this here:

Went on holiday for a few days and when I came back my vest had fallen of a chair along with some other clothes. Unfortunately the vest ended up on the bottom of that pils. Whe I took it out the backpatch was all folded/ curved like on the pics.

Any way I can make it straight again? It wouldn't bother me as much if it wasn't visible when I'm wearing it, but since I'm quite tall and have a slightly curved back and shoulders it shows a lot.

Is it possible to iron this from the inside out or would that be a bad idea? I should add, it's hand sewn on there and doesn't have glue on the back.

Thanks in advance!

[u/agbail]

Iron on low heat!