If you aren't familiar with sisters Kate and Laura Mulleavy, you should be. The pair are the brains behind Rodarte, the ingenious clothing line that we're completely smitten for.

Though their last few seasons have been smash hits, nothing they've done to date has come close to their Fall 2008 collection. The sisters took their line in a completely new direction that everyone in fashion buzzing about "the next big thing" and "here to stay."

So if you want to look cool for fall...

...check out their collection. Full of ripped tights, torn knitwear, spiked Christian Loub's, and a "drowned ragdoll" aesthetic, the line certainly brought on some trends that we think other designers will play around with come next season.

Incorporate the Rodarte idea into your own fall wardrobe by:

• Ripping up a pair of tights and pairing it with a sweet A-line skirt

• Wearing spiked and studded heels

• Pairing something edgy with something sophisticated to every look

See the gals in the gallery for more inspiration.