/fa/ - Fashion

/suit/ thread! Discuss suits! Wear suits! /suit/s!

Got a couple questions for you guys.
I've been wearing a charcoal two-piece suit for a while now, but it's time to don a new ensemble. I've been looking into a three-piece suit, but I'm at odds with a friend who's trying to talk me out of it, saying they're "outdated." I think they look classy and authoritative. So here are my questions:

>Are three-piece suits classic or outdated?
>Can a younger guy wear a three-piece, or will it be seen as more of a "costume" unless taken up by a more mature wearer?
>Can a three-piece be worn without the waistcoat, or is the deep-neckline going to look out of place?