A boxing event can be either a glamorous place to be seen by the in crowd or it can be a way to enjoy a night out with friends. But when there are different events within an event, you can draw attention to yourself for the wrong reasons by dressing improperly.
Attire for Women
For women, the appropriate attire depends entirely on how good your tickets are. The closer to the ring you are, the more formal you need to dress, and the more bright jewelery you need to wear. Look as beautiful as you possibly can, because many of the men in the arena will be looking at you and admiring you. If you're sitting in the second deck or higher, you can dress as if you're attending a regular sporting event, but still dress to impress.
Attire for Men
For men, the same rules apply: The better your seats, the better you dress. Boxing matches are a place to be seen, so wear your nicest attire. You don't need to dress like you're going to a job interview, but you do need to dress to impress. You spent all that money on great seats, so you want to look like you belong. Slacks or expensive jeans, nice shirts are a must--leave the sneakers at home.
If you're going to a boxing match as part of an event, like a stag party, that doesn't excuse dressing for the event. There's a reason Don King always wears a tux--he's always at a boxing match. Hold your friends accountable for the way they look. To remember the night, especially if you are caught on camera, you want to look your best.