Jo In Sung did a photoshoot for the outdoor brand Black Yak’s Fall/Winter 2011 collection.  The actor, who has been the brand’s model since last May, showed his true professionalism during the photoshoot.  Although the photoshoot took place at an airstrip in Gyeonggi Province in mid-August, with sweltering hot temperatures and extremely high humidity, he and a fellow model donned the bulky parkas and sweaters without complaint.  What a great attitude!  (We can tell you that the summer here in Korea is absolutely no joke.  It makes us sweat just looking at Jo In Sung’s outfits, but he looks so cool and calm!)