Based on the search results, there is no information about Witchery dresses product details, ingredients, or materials. However, there is a website called The Good Dress that sells a blue and white striped dress by Witchery. Additionally, there are several articles and websites that discuss witchcraft materials, spells, and practices. There is also a Reddit thread discussing the quality and design of Witchery clothing, with some users expressing disappointment in the brands recent offerings.