Win it: Olivia Wilde's Fave Boyfriend Blazer!

What’s the one piece this very moment that can last forever in your closet and still always seem current and modern? Straight off your beau's back -- the Boyfriend Blazer!

I just love this look -- not just because it covers up my tuchus but because it works with everything. You can wear it with trousers or a pencil skirt, over a sequined mini-dress or rocker tee and jeans. See?

Some Boyfriend Blazer rules to live by:
- You can style this with boyfriend jeans. Just make sure you put a sexy high heel with it.
- Don't borrow a man's jacket. The fit won't be as flattering.
- Mix it up with a romantic tank top with ruffles or something feminine.
- Turn up the cuffs if the lining is nice. If not, go to the tailor and have it fitted properly.

The Boyfriend Blazer by XCVI -- which counts Olivia Wilde, Molly Sims and Glee's Dianna Agron as fans -- retails for $150 at Neiman Marcus, but it can be yours for, well, free!

This just in: 25 lucky winners will each receive one Boyfriend Blazer by XCVI (available in sizes extra-small, medium, large and extra-large and in color options of black, charcoal and cafe).

Open to residents of the United States age 18 and older, the contest runs from now until April 8 at 11:59 p.m./EST. To enter, email your name, address, daytime phone number and age, to giveaways@usmagazine.com. You must put "Boyfriend Blazer" in the subject line to be eligible. Please also include your blazer size and color preference.

Limit one entry per person. No purchase necessary. Void where prohibited. Restrictions may apply.

Click here for official rules.

By Sasha Charnin Morrison for UsMagazine.com. To read more of the Recessionista blog, click here.