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The only thing truly chilling about Halloween is how little fabric manufacturers use for women’s costumes.

In the name of Science™, we researched popular costume ideas for men and women, and compared them side-by-side. We began to see a theme emerge. Manufacturers assume that ladies are looking to show a lot of skin, while men’s costumes offer a lot more coverage (and, thus, warmth).

Check out these 21 jarring costume comparisons.