A black blazer and black ripped jeans are the kind of a winning casual ensemble that you need when you have zero time. If you want to immediately up the ante of your outfit with one piece, introduce black leather derby shoes to your outfit. So if it's a summer afternoon and you want to look stylish without putting in too much work, this look will do the job in no time flat. Perfect for a gent in his twenties if you want to project a casual spirit.