This is awesome! I am having that same debate. Fi originally wanted linen pants and guyaberra shirts and flip flops for the guys, which I think is fine for a beach wedding...but we are getting married on the ship, and I think we need something dressier.
I LOVE that look of vests for the groomsmen but DH in a suit. That looks super sharp. I will definitely have to run this by the fi. That way the groomsmen are a little relaxed like he wanted, but still classy