Hanging in my closet right now is a sequined, electric blue, ridiculously baggy top that screams "Get This Party to Studio 54!" Metallics and slouchy shapes were the talk of fall 2008, after all, so I promptly slapped down my credit card. I've worn it...twice.

So goes my fall-shopping season. See it, love it, buy it—only to let it die a long, slow death in the back of my closet once next year's hot new thing comes along. To avoid making the same mistake again this year, I cornered O 's creative director, Adam Glassman, and asked him for advice on what trends will be forever known as "Fall 2009" and which ones will stick around for a while.

Balmain harem pants
Trend: Harem Pants

"We say no to the MC Hammer-pant look at all costs," Adam says. "I've seen people—tall, young, skinny people—look really chic in them, but the droopy drawers are tricky to pull off for most real women."

Here to Stay: The Classic Khaki

Take a basic trouser into '09 with a colorful bag and coat.

Next: Strong shoulders


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