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Trend: Stirrup Pants.
"The legging is a very easy look to do," Adam says. But if you choose the stirrup version or wear them as pants, with tops that are too short or high heels, you run the risk of looking like a character in a John Hughes movie. "If you wore it the first go-around, it's safe to say you really don't want to wear it the second time around," he says.

Here to Stay: Leggings as Layering Pieces
"I like a legging with sophisticated layering pieces," he says. "Wear them underneath a tunic, short dress, or with a longer jacket."