I've been invited to an early autumn wedding, quite a distance from home so traveling up in the morning and staying overnight. I'll be about 34 weeks so will need something to accommodate the huge boulder in front of me. I'm about a size 20-22, ideally want something to cover my knees and at least the top of my arms as they are roughly the size of tree trunks. It needs to be cool enough that it won't boil me alive if we have late September sun or can wear with a cardigan if it is breezy. If it's something easily creased from sitting in the car for 4 hours then I'll need to change at services (with nobody to help zip me up!) If anyone can find anything to match all those ridiculous criteria then I'll be eternally grateful!