Double Breasted suit

There's no problem with it being double-breasted, but pin-stripes are probably not the best choice for going out, they are more suited to business-wear.

The only way to really give you solid advice on this particular suit is for you to try it on and take clear pictures of it's fit.

Personally, I think a DB suit should be nice and snug, and cut a little shorter to avoid looking like an old man.

A DB suit should always have pleats, and never belt loops, that will avoid it looking like a fashion piece.

I disagree with this, I think. In your 20s, there's always a danger that a DB suit will look dowdy, or like costume. The OP wants a suit to go out in so, presumably, part of its purpose is to get him laid. Pleats and braces aren't going to do this, unless he is very charismatic in a very eccentric sort of way. I agree with Landshark that he should find something relatively modern; and I don't mean something shiny or ridiculously short, just slim fitting
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I'm 20 so probably a fair bit younger, but if I were to have one suit to wear out at night it would be solid navy blue, SB, 2 button, with flat front trousers. I'd only consider DB for this kind of thing if I could go bespoke and get something that looked really, really suave.

Where are you coming up with these arbitrary rules from?

+1

 

There is no such "rule". And in any event, if you keep the jacket buttoned (that IS a rule) like you should, the only time anyone will find out about your flat fronts and belt is when you already are trysting with your young lady- at which point she'll have other things on her mind.

For pieces like this, bold chalkstripes would probably be better than pins but in any event, get the jacket close fitted and no shorter than the bottom of your crotch- cover your ass or you'll look like a girl. Aside from that , go for it.

I personally am not crazy about the pinstripes but if it was chalkstripe then hell yes (the idea not the suit). At any rate your best bet is to just give it a test run in the fitting room, snap a few photos and upload them here. But considering your age, I doubt you'll get a lot of use out of the suit for say another 5 years or so when your friends start to get married and all.

Im a bit dubious about the high button fastening your describing.