I did a search, and didn't find the answer to my question. My apologies ahead of time if I overlooked a similar post.
FI and I went to Men's Warehouse today to pick out tuxes for him and the groomsmen. While I was there, I realized that I hadn't thought about what my dad and FFIL would wear. I am not looking to dictate what the dad's wear, because I know they can wear whatever they want. BUT I would like to give them some suggestions and guidance, because neither of them is very fashion-conscious.
The guys are all wearing a grey tux with a royal purple straight tie. The groomsmen are wearing a vest to match the tie. FI is wearing a vest to match the tux jacket and a purple pocket-square.
What guidance can I offer the dads about their attire for our wedding? (Our wedding is in a church on an August afternoon.)