Jordin Sparks braves the cold in her short capri running pants . . . carrying an extra shirt for backup. Layering is key when the temps are cooler because you don't want to be freezing as soon as you start your run, so wearing the proper clothes will prevent this. And as soon as you start heating up, you can undo zippers, roll up sleeves, or tie your windbreaker around your waist.
Jordin credits her new bod to a fitness routine that includes running and boxing.