My ds is getting married this summer. They're having a register office ceremony followed by a garden party/blessing in our garden a few days later. I am a casual dresser and haven't really 'dressed up' before, apart from my own wedding. I've never worn a hat. 
I'm 47 and by the wedding I should be about a size 14, maybe a large one. I'm disabled and can't walk in high heels and don't want to show off my toes. I'm 5'7".
I like vintage style but I don't want to look ridiculous or like I'm in fancy dress. I've attached some pictures of things I like, what do you think? I really like the style of the crochet half hat but I'm not sure about the material 