Jadore Formal Dresses to suit All Sizes. Dressing For your School Formal is your chance to shine. Whether you prefer eye catching block colours, bold, bright prints, or sparkling sequins. We want you to feel confident and comfortable in the dress you choose. The amazing Jadore Dress Ranges caters for all sizes. We try our best at stock many different styles that is flattering for all body types. Our sizes range from 6- 20. .