As the owner of a design firm/SEO agency, I feel justified saying that designers need to grow up a little bit and stop making excuses (imho.) It is not that hard to make a high quality site that includes both text and images. Photographers do it all the time (like this.)
Put information on your site that visitors will actually enjoy reading. Talk about what kind of materials the clothes were made from. You can describe the stitch patterns, the designer, what famous people have worn your clothes (if any) suggestions of how to accessorize the item with other products from your store...etc.
Obviously, you should find tactful and organic ways of including that information. In closing, I'd like to point out that sites without textual content rarely out-rank their competitors. Even PR 7-10 sites like Facebook & Pinterest are not able to rank for pictures without text.