Seo In Guk and SISTAR put on their coats for outdoor brand 'ISENBERG's 2013 fall-winter collection.

In the newly released behind-the-scenes cuts, SISTAR proved that they can still be sexy while covered up, and Seo In Guk served as just as much eye candy with his charisma on set.
Check out the BTS cuts, while you wait for the full pictorial to be released later this month!
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