Shop Spirit for Halloween Panties and Shorts to complete your costume! If you’re looking for women’s Halloween underwear for your getup, you’ve come to the right place. We carry everything from a black lace garter belt, including plus sizes, if you’re going for a sexy look, as well as faux leather shorts that can enhance any costume. Slip on some black boyshort Halloween panties to go under a short skirt or dress or red sequin shorts or ruffled boyshorts. You’ll look the part perfectly when you start off with just the right undies or Halloween shorts.