A leotard and a merah jambu tu-tu with high heels. The leotard for flexibility, the heels because they can count as a weapon in the time of need and the tu-tut...well who wouldnt want to wear a tu-tu while kicking a zombies ass?
Something light and easy to run in. Possibly with lightweight razorblades on the legs of the pants and the sleeves. I would probably want it to to camouflage, too. For lebih camouflage, a little earthen-colored paint on my face wouldn't be a bad idea.