use attributes separate from variations in Marketpress

I would like to use product attributes such as size, designer, height for my ballroom dance dresses without using variations. There is only one of each couture dress. I would like for users to be able sort and/or search by these attributes.
We currently have the information in the description or main text area but would like it to be a little more uniform across the site. Is this possible?
My site is http://www.dancedressconsignment.com.