13. Cuffing pants and sleeves

Do not fold up your suit jacket sleeves or pant if it is too big or long. It looks very untrendy. Take them to a tailor and get them hemmed according to your height/size.

12. Leaving sleeve tags & vents stitches

This makes you look like an amateur! Before your first wear, unstitch the jacket’s pockets and blazer vents. Also remove the brand label/tag from the jacket’s sleeves. Do it very carefully.

11. Shirt Collar outside Suit lapel

Hey man, what’s wrong? Are you wearing a shirt collar outside a suit lapel? Not a smart movement! Don’t try to pop your shirt collar outside your suit lapel.