I have a striped black slack and what kind of coat can I buy separately to match it? I want the coat to be able to suit other slack that I'll be buying in future... sorry about this newbie question but I am a newbie in suits now... Can a plain black coat suit the slack? Obviously a similar striped coat from the same brand will suit well but it's expensive and I bought the slack a year ago.... no money to buy a whole new set of suit...

Will any gurus here pls help?? My slack picture is attached