Add a fun twist to your Halloween costume with this Iridescent Sequin Witch Hat Costume Headwear from Hyde and EEK! Boutique?. This green hat features symmetrical sequin detailing that gives it an iridescent finish and changes colors when flipped. Made of polyester, this green witch hat is perfect for imaginative role plays, Halloween, costume parties, and more. Hyde and EEK! Boutique?: Thrilling delights. Curious oddities.