If you're going to wear a wig with a costume, Wig Cap will really help keep your own hair tucked away so the wig looks smooth and therefore realistic. It's not until you've worn one, you realize how much difference they make. Whether your hair is long or short, it'll keep your own hair out of sight. Don't make wearing your wig half-hearted with strands of hair showing, wear it the professional way with this little bit of ingenuity.