Quote Originally Posted by Presuming Ed
Montrose doublets are always worn with a belt.
The thing about them is that they're very, very hot.

Not entirely sure it's suitable for a wedding - it's definitely an evening doublet, and weddings in the UK generally take place in daytime. YMMV.
As O'Neille says , I was planning to just wear a Jabot and the cuffs with a vest underneath. Ideally I'd have a day jacket for the wedding, but sadly my Lovat Tweed one was made for a smaller man (ahem.) Now THAT was hot to dance in!

Si.