Women's Costumes & Women's Halloween Costumes. Girl, it's Halloween and time to show everyone what you got going on! But the eternal question is what to wear? Fret not, we've got wardrobes worth of women's Halloween costumes for you to try on until you find the perfect fit. And if you're looking for women's costume ideas, we can help you out too with all this season's looks. And we carry all sizes from plus size women's costumes to small. See? That wasn't so rough. So dig around in our closet and see what pops up. It just might be your perfect women's Halloween costume!