Debretts, the British etiquette guide, still says that "for most people, this is the most formal dress code they will ever encounter"
(Sadly its no longer available, but I found similar styles here, here, here, and here and you can browse the designers full collection here.) The crisp striped poplin felt like it was made for Nantucket and the cut of the dress made it appropriate for this once-in-a-lifetime occasion
The dresses are fully lined, chest pad in the bust, lace up back or zipper back are all available, total 126 colors are available
2XL=US 16-18
Similar items ALDO Mens Suede Oxford Beige Dress Shoes Size 13 13 (46) | Like New | ALDO $36.00 +$1.65 Buyer Protection fee Pay in 4 payments starting at $9.00 with * By continuing to checkout, you agree to the Mercari Privacy Policy and Terms of Service Buyer Protection Receive your item as described, or get your money back