This document discusses types of fashion products and trends. It identifies the main categories of fashion apparel as women's wear, men's wear, and children's wear. It describes hardlines and softlines products, and explains women's, men's, and children's sizing and classifications. The document also outlines the fashion cycle and discusses theories of how new fashion trends emerge and are adopted, such as the trickle-down, trickle-up, and trickle-across theories.