Old Navy Black Multi-colored Bug Tiered Dress. Sz Large. Fall, Prairie, Garden. The Old Navy Black Multi-colored Bug Tiered Dress in size Large is a stylish and lightweight option for the fall season. This knee-length dress features a round neckline, short sleeves, and a button closure. The dress is adorned with a colorful butterfly pattern, perfect for a casual or travel occasion. Made from rayon woven fabric, this slip dress is ideal for summer, fall, and spring, and includes keyhole neckline accents for added detail.