Blue Gene is part of DesignerShoes.com's Fashion Fun collection. Blue Gene is a high heel dress bootie. Aerosoles is known for making most of their shoes with rubber soles and leather uppers. Aerosoles's widest range of sizes runs from 5 to 12 and includes widths medium (M), and wide (W).This is a dressy bootie. Your go-to boot for every day while you enjoy height and comfort.