Billabong Just Add Sun Mini Dress. The Summerland collection Just Add Sun mini slip dress is made with eco-friendly crinkle viscose, so it's perfect for dancing, traveling, resorting— go where the sun moves you, wrinkles aren't a worry. Plus, a range of bold prints, a flattering shape, and a comfortable fit with a smocked back. Fitted bodice. Easy skirt. Smocked back panel. Deep V-neckline. Metal plate branding. 100% Viscose. Imported.