Help please...

My eldest Daughter is getting married in August.

I am driving up to Edinburgh (this Friday AM) with her and her sister who is also her chief bridesmaid.

I did intend to go for Tartan Trews, however I have been told that this in not the proper dress for me to have, and that I should be going for the correct kilt type etc.
Also I need to go ONLY to the better quality kilt makers in the city as I want it to last for any future weddings Etc.. so help all around please.

Regards

FRank.