Complex sentence: Other new exclusive brands for junior's and young men's were launched in the summer of 2008, including Le Tigre (relaunch), Decree, and Fabulosity, a junior line of clothing by Kimora Lee Simmons.
Split into simpler sentences: Other new exclusive brands for juniors and young men's were launched in the summer of 2008. They included a relaunch of Le Tigre, along with Decree, and Fabulosity, a junior line of clothing by Kimora Lee Simmons.