Online Shopping Sites For Dresses Finding a dress online is never easier. Many retailers offer a wide variety of styles, Professional Scuba Fins sizes, and prices. Some offer free alterations and tailoring for members. Asos offers a wide range of casual and red carpet ready dresses at all price points and also a selection for the plus size crowd. Its own label is a mix of Topshop, Mango and Air King High Performance Fan (vimeo.com) other brands to provide an overall shopping experience. Asos Asos, a UK-based fashion retailer online, provides a wide range of clothing and [empty] accessories. The website offers more than 850 brands including its own private label. The site also sells independent boutique labels as well as vintage clothing. The company's mission is to assist customers to look, feel and feel their best. However, there are some concerns about the company's business practices.